/* ------------------------------------------------------------------------
  Class: prettyPhoto
  Use: Lightbox clone for jQuery
  Author: Stephane Caron (http://www.no-margin-for-errors.com)
  Version: 2.4.3
------------------------------------------------------------------------- */

var $pp_pic_holder;
var $ppt;

(function($) {
  $.fn.prettyPhoto = function(settings) {
    // global Variables
    var doresize = true;
    var percentBased = false;
    var imagesArray = [];
    var setPosition = 0; /* Position in the set */
    var pp_contentHeight;
    var pp_contentWidth;
    var pp_containerHeight;
    var pp_containerWidth;
    var pp_type = 'image';

    // Global elements
    var $caller;
    var $scrollPos = _getScroll();

    /*$(window).scroll(function(){ $scrollPos = _getScroll(); _centerPicture(); });*/
    $(window).resize(function(){ /*_centerPicture();*/ _resizeOverlay(); });
    $(document).keypress(function(e){
      switch(e.keyCode){
        case 37:
          if (setPosition == 1) return;
          changePicture('previous');
          break;
        case 39:
          if (setPosition == setCount) return;
          changePicture('next');
          break;
        case 27:
          close();
          break;
      };
      });


    settings = jQuery.extend({
      animationSpeed: 'normal', /* fast/slow/normal */
      padding: 2, /* padding for each side of the picture */
      opacity: 0.3, /* Value between 0 and 1 */
      showTitle: true, /* true/false */
      allowresize: false, /* true/false */
      counter_separator_label: '/', /* The separator for the gallery counter 1 "of" 2 */
      theme: 'prh_rounded', /* light_rounded / dark_rounded / light_square / dark_square */
      callback: function(){}
    }, settings);

    // Fallback to a supported theme for IE6
    if($.browser.msie && $.browser.version == 6){
      settings.theme = "light_square";
    }

    $(this).each(function(){
      var hasTitle = false;
      var isSet = false;
      var setCount = 0; /* Total images in the set */
      var arrayPosition = 0; /* Total position in the array */

      imagesArray[imagesArray.length] = this;
      $(this).bind('click',function(){
        open(this);
        return false;
      });
    });

    function open(el) {
      $caller = $(el);

      // Find out if the picture is part of a set
      theRel = $caller.attr('rel');
      galleryRegExp = /\[(?:.*)\]/;
      theGallery = galleryRegExp.exec(theRel);

      // Calculate the number of items in the set, and the position of the clicked picture.
      isSet = false;
      setCount = 0;

      _getFileType();

      for (i = 0; i < imagesArray.length; i++){
        if($(imagesArray[i]).attr('rel').indexOf(theGallery) != -1){
          setCount++;
          if(setCount > 1) isSet = true;

          if($(imagesArray[i]).attr('href') == $caller.attr('href')){
            setPosition = setCount;
            arrayPosition = i;
          };
        };
      };

      _buildOverlay();

      // Display the current position
      $pp_pic_holder.find('p.currentTextHolder').text(setPosition + settings.counter_separator_label + setCount);

      // Position the picture in the center of the viewing area
      _centerPicture();

      $('#pp_full_res').hide();
      $pp_pic_holder.find('.pp_loaderIcon').show();
    };

    showimage = function(width,height,containerWidth,containerHeight,contentHeight,contentWidth,resized){
    try{
      $('.pp_loaderIcon').hide();

      if($.browser.opera) {
        windowHeight = window.innerHeight;
        windowWidth = window.innerWidth;
      }else{
        windowHeight = $(window).height();
        windowWidth = $(window).width();
      };

      $pp_pic_holder.find('.pp_content').animate({'height':contentHeight},settings.animationSpeed);

      projectedTop = $scrollPos['scrollTop'] + ((windowHeight/2) - (containerHeight/2));
      if(projectedTop < 0) projectedTop = 0 + $pp_pic_holder.find('.ppt').height();

      // Resize the holder
      $pp_pic_holder.animate({
        //'top': projectedTop,
        //'left': ((windowWidth/2) - (containerWidth/2)),
        //'marginTop': 0- (containerHeight/2),
        'marginLeft': - (containerWidth/2),
        top: getBodyScrollTop() + 20,
        'width': containerWidth
      },settings.animationSpeed,function(){
        $pp_pic_holder.width(containerWidth);
        $pp_pic_holder.find('.pp_hoverContainer,#fullResImage').height(height).width(width);

        // Fade the new image
        $pp_pic_holder.find('#pp_full_res').fadeIn(settings.animationSpeed,function(){
          $(this).find('object,embed').css('visibility','visible');
        });

        // Show the nav elements
        _showContent();

        // Fade the resizing link if the image is resized
        if(resized) $('a.pp_expand,a.pp_contract').fadeIn(settings.animationSpeed);
      });
      }
      catch(e){}
    };

    function _showContent(){
      // Show the nav
      if(isSet && pp_type=="image") { $pp_pic_holder.find('.pp_hoverContainer').fadeIn(settings.animationSpeed); }else{ $pp_pic_holder.find('.pp_hoverContainer').hide(); }
      $pp_pic_holder.find('.pp_details').fadeIn(settings.animationSpeed);

      // Show the title
      if(settings.showTitle && hasTitle){
        $ppt.css({
          //'top' : $pp_pic_holder.offset().top - 22,
          //'left' : $pp_pic_holder.offset().left + (settings.padding/2),
          'marginTop' : parseInt($pp_pic_holder.css('marginTop')) - 22,
          'marginLeft' : parseInt($pp_pic_holder.css('marginLeft')) + (settings.padding/2),
          'display' : 'none'
        });

        $ppt.fadeIn(settings.animationSpeed);
      };
    }

    function _hideContent(){
      // Fade out the current picture
      $pp_pic_holder.find('.pp_hoverContainer,.pp_details').fadeOut(settings.animationSpeed);
      $pp_pic_holder.find('#pp_full_res object,#pp_full_res embed').css('visibility','hidden');
      $pp_pic_holder.find('#pp_full_res').fadeOut(settings.animationSpeed,function(){
        $('.pp_loaderIcon').show();

        // Preload the image
        _preload();
      });

      // Hide the title
      $ppt.fadeOut(settings.animationSpeed);
    }

    function changePicture(direction){
      if(direction == 'previous') {
        arrayPosition--;
        setPosition--;
      }else{
        arrayPosition++;
        setPosition++;
      };

      // Allow the resizing of the images
      if(!doresize) doresize = true;

      _hideContent();
      $('a.pp_expand,a.pp_contract').fadeOut(settings.animationSpeed,function(){
        $(this).removeClass('pp_contract').addClass('pp_expand');
      });
    };

    function close(){
      $pp_pic_holder.find('object,embed').css('visibility','hidden');

      $('div.pp_pic_holder,div.ppt').fadeOut(settings.animationSpeed);

      $('div.pp_overlay').fadeOut(settings.animationSpeed, function(){
        $('div.pp_overlay,div.pp_pic_holder,div.ppt').remove();

        // To fix the bug with IE select boxes
        if($.browser.msie && $.browser.version == 6){
          $('select').css('visibility','visible');
        };

        settings.callback();
      });

      doresize = true;
    };

    function _checkPosition(){
      // If at the end, hide the next link
      if(setPosition == setCount) {
        $pp_pic_holder.find('a.pp_next').css('visibility','hidden');
        $pp_pic_holder.find('a.pp_arrow_next').addClass('disabled').unbind('click');
      }else{
        $pp_pic_holder.find('a.pp_next').css('visibility','visible');
        $pp_pic_holder.find('a.pp_arrow_next.disabled').removeClass('disabled').bind('click',function(){
          changePicture('next');
          return false;
        });
      };

      // If at the beginning, hide the previous link
      if(setPosition == 1) {
        $pp_pic_holder.find('a.pp_previous').css('visibility','hidden');
        $pp_pic_holder.find('a.pp_arrow_previous').addClass('disabled').unbind('click');
      }else{
        $pp_pic_holder.find('a.pp_previous').css('visibility','visible');
        $pp_pic_holder.find('a.pp_arrow_previous.disabled').removeClass('disabled').bind('click',function(){
          changePicture('previous');
          return false;
        });
      };

      // Change the current picture text
      $pp_pic_holder.find('p.currentTextHolder').text(setPosition + settings.counter_separator_label + setCount);

      $caller = (isSet) ? $(imagesArray[arrayPosition]) : $caller;
      _getFileType();

      if($caller.attr('title')){
        $pp_pic_holder.find('.pp_description').show().html(unescape($caller.attr('title')));
      }else{
        $pp_pic_holder.find('.pp_description').hide().text('');
      };

      if($caller.find('img').attr('alt') && settings.showTitle){
        hasTitle = true;
        $ppt.html(unescape($caller.find('img').attr('alt')));
      }else{
        hasTitle = false;
      };
    };

    function _fitToViewport(width,height){
      hasBeenResized = false;

      _getDimensions(width,height);

      // Define them in case there's no resize needed
      imageWidth = width;
      imageHeight = height;

      windowHeight = $(window).height();
      windowWidth = $(window).width();

      if( ((pp_containerWidth > windowWidth) || (pp_containerHeight > windowHeight)) && doresize && settings.allowresize && !percentBased) {
        hasBeenResized = true;
        notFitting = true;

        while (notFitting){
          if((pp_containerWidth > windowWidth)){
            imageWidth = (windowWidth - 200);
            imageHeight = (height/width) * imageWidth;
          }else if((pp_containerHeight > windowHeight)){
            imageHeight = (windowHeight - 200);
            imageWidth = (width/height) * imageHeight;
          }else{
            notFitting = false;
          };

          pp_containerHeight = imageHeight;
          pp_containerWidth = imageWidth;
        };

        _getDimensions(imageWidth,imageHeight);
      };

      return {
        width:imageWidth,
        height:imageHeight,
        containerHeight:pp_containerHeight,
        containerWidth:pp_containerWidth,
        contentHeight:pp_contentHeight,
        contentWidth:pp_contentWidth,
        resized:hasBeenResized
      };
    };

    function _getDimensions(width,height){
      $pp_pic_holder.find('.pp_details').width(width).find('.pp_description').width(width/* - parseFloat($pp_pic_holder.find('a.pp_close').css('width'))*/); /* To have the correct height */

      // Get the container size, to resize the holder to the right dimensions
      pp_contentHeight = height + $pp_pic_holder.find('.pp_details').height() + parseFloat($pp_pic_holder.find('.pp_details').css('marginTop')) + parseFloat($pp_pic_holder.find('.pp_details').css('marginBottom'));
      pp_contentWidth = width;
      pp_containerHeight = pp_contentHeight + $pp_pic_holder.find('.ppt').height() + $pp_pic_holder.find('.pp_top').height() + $pp_pic_holder.find('.pp_bottom').height();
      pp_containerWidth = width + settings.padding;
    }

    function _getFileType(){
      if ($caller.attr('href').match(/youtube\.com\/watch/i)) {
        pp_type = 'youtube';
      }else if($caller.attr('href').indexOf('.mov') != -1){
        pp_type = 'quicktime';
      }else if($caller.attr('href').indexOf('.swf') != -1){
        pp_type = 'flash';
      }else if($caller.attr('href').indexOf('iframe') != -1){
        pp_type = 'iframe'
      }else{
        pp_type = 'image';
      }
    }

    function _centerPicture(){
    try{
      if ($pp_pic_holder){ if($pp_pic_holder.size() == 0){ return; }}else{ return; }; //Make sure the gallery is open

      if($.browser.opera) {
        windowHeight = window.innerHeight;
        windowWidth = window.innerWidth;
      }else{
        windowHeight = $(window).height();
        windowWidth = $(window).width();
      };

      if(doresize) {
        $pHeight = $pp_pic_holder.height();
        $pWidth = $pp_pic_holder.width();
        $tHeight = $ppt.height();

        projectedTop = (windowHeight/2) + $scrollPos['scrollTop'] - ($pHeight/2);
        if(projectedTop < 0) projectedTop = 0 + $tHeight;

        $pp_pic_holder.css({
          //'top': projectedTop,
          //'left': (windowWidth/2) + $scrollPos['scrollLeft'] - ($pWidth/2)
          'marginTop': - ($pHeight / 2),
          'marginLeft': - ($pWidth / 2)
        });

        $ppt.css({
          //'top' : projectedTop - $tHeight,
          //'left' : (windowWidth/2) + $scrollPos['scrollLeft'] - ($pWidth/2) + (settings.padding/2)
          'marginTop' : - ($pHeight / 2) - 22,
          'marginLeft' : - ($pWidth / 2) + (settings.padding/2)
        });
      };
      }
      catch(e){}
    };

    function _preload(){
      // Hide the next/previous links if on first or last images.
      _checkPosition();

      if(pp_type == 'image'){
        // Set the new image
        imgPreloader = new Image();

        // Preload the neighbour images
        nextImage = new Image();
        if(isSet && setPosition > setCount) nextImage.src = $(imagesArray[arrayPosition + 1]).attr('href');
        prevImage = new Image();
        if(isSet && imagesArray[arrayPosition - 1]) prevImage.src = $(imagesArray[arrayPosition - 1]).attr('href');

        pp_typeMarkup = '<img id="fullResImage" src="" />';
        $pp_pic_holder.find('#pp_full_res')[0].innerHTML = pp_typeMarkup;

        $pp_pic_holder.find('.pp_content').css('overflow','hidden');
        $pp_pic_holder.find('#fullResImage').attr('src',$caller.attr('href'));

        imgPreloader.onload = function(){
          var correctSizes = _fitToViewport(imgPreloader.width,imgPreloader.height);
          imgPreloader.width = correctSizes['width'];
          imgPreloader.height = correctSizes['height'];
          showimage(imgPreloader.width,imgPreloader.height,correctSizes["containerWidth"],correctSizes["containerHeight"],correctSizes["contentHeight"],correctSizes["contentWidth"],correctSizes["resized"]);
        };

        imgPreloader.src = $caller.attr('href');
        var url_parts = imgPreloader.src.split('/');
        $pp_pic_holder.find('p.pp_download a').attr('href', '/photo_download/'+url_parts[url_parts.length-3]+'/'+url_parts[url_parts.length-2]);
      }else{
        // Get the dimensions
        movie_width = ( parseFloat(grab_param('width',$caller.attr('href'))) ) ? grab_param('width',$caller.attr('href')) : "425";
        movie_height = ( parseFloat(grab_param('height',$caller.attr('href'))) ) ? grab_param('height',$caller.attr('href')) : "344";

        // If the size is % based
        if(movie_width.indexOf('%') != -1 || movie_height.indexOf('%') != -1){
          movie_height = ($(window).height() * parseFloat(movie_height) / 100) - 100;
          movie_width = ($(window).width() * parseFloat(movie_width) / 100) - 100;
          parsentBased = true;
        }else{
          movie_height = parseFloat(movie_height);
          movie_width = parseFloat(movie_width);
        }

        if(pp_type == 'quicktime'){ movie_height+=13; }

        // Fit them to viewport
        correctSizes = _fitToViewport(movie_width,movie_height);

        if(pp_type == 'youtube'){
          pp_typeMarkup = '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="'+correctSizes['width']+'" height="'+correctSizes['height']+'"><param name="allowfullscreen" value="true" /><param name="allowscriptaccess" value="always" /><param name="movie" value="http://www.youtube.com/v/'+grab_param('v',$caller.attr('href'))+'" /><embed src="http://www.youtube.com/v/'+grab_param('v',$caller.attr('href'))+'" type="application/x-shockwave-flash" allowfullscreen="true" allowscriptaccess="always" width="'+correctSizes['width']+'" height="'+correctSizes['height']+'"></embed></object>';
        }else if(pp_type == 'quicktime'){
          pp_typeMarkup = '<object classid="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B" codebase="http://www.apple.com/qtactivex/qtplugin.cab" height="'+correctSizes['height']+'" width="'+correctSizes['width']+'"><param name="src" value="'+$caller.attr('href')+'"><param name="autoplay" value="true"><param name="type" value="video/quicktime"><embed src="'+$caller.attr('href')+'" height="'+correctSizes['height']+'" width="'+correctSizes['width']+'" autoplay="true" type="video/quicktime" pluginspage="http://www.apple.com/quicktime/download/"></embed></object>';
        }else if(pp_type == 'flash'){
          flash_vars = $caller.attr('href');
          flash_vars = flash_vars.substring($caller.attr('href').indexOf('flashvars') + 10,$caller.attr('href').length);

          filename = $caller.attr('href');
          filename = filename.substring(0,filename.indexOf('?'));

          pp_typeMarkup = '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="'+correctSizes['width']+'" height="'+correctSizes['height']+'"><param name="allowfullscreen" value="true" /><param name="allowscriptaccess" value="always" /><param name="movie" value="'+filename+'?'+flash_vars+'" /><embed src="'+filename+'?'+flash_vars+'" type="application/x-shockwave-flash" allowfullscreen="true" allowscriptaccess="always" width="'+correctSizes['width']+'" height="'+correctSizes['height']+'"></embed></object>';
        }else if(pp_type == 'iframe'){
          movie_url = $caller.attr('href');
          movie_url = movie_url.substr(0,movie_url.indexOf('iframe')-1);

          pp_typeMarkup = '<iframe src ="'+movie_url+'" width="'+(correctSizes['width']-10)+'" height="'+(correctSizes['height']-10)+'" frameborder="no"></iframe>';
        }
        // Append HTML
        $pp_pic_holder.find('#pp_full_res')[0].innerHTML = pp_typeMarkup;

        // Show content
        showimage(correctSizes['width'],correctSizes['height'],correctSizes["containerWidth"],correctSizes["containerHeight"],correctSizes["contentHeight"],correctSizes["contentWidth"],correctSizes["resized"]);
      }
    };

    function _getScroll(){
      if (self.pageYOffset) {
        scrollTop = self.pageYOffset;
        scrollLeft = self.pageXOffset;
      } else if (document.documentElement && document.documentElement.scrollTop) {	 // Explorer 6 Strict
        scrollTop = document.documentElement.scrollTop;
        scrollLeft = document.documentElement.scrollLeft;
      } else if (document.body) {// all other Explorers
        scrollTop = document.body.scrollTop;
        scrollLeft = document.body.scrollLeft;
      }

      return {scrollTop:scrollTop,scrollLeft:scrollLeft};
    };

    function _resizeOverlay() {
      $('div.pp_overlay').css({
        'height':$(document).height(),
        'width':$(window).width()
      });
    };

    function _buildOverlay(){
      toInject = "";

      // Build the background overlay div
      toInject += "<div class='pp_overlay'></div>";

      // Define the markup to append, depending on the content type.
      if(pp_type == 'image'){
        pp_typeMarkup = '<img id="fullResImage" src="" />';
      }else{
        pp_typeMarkup = '';
      }

      // Basic HTML for the picture holder
      toInject += '<div class="pp_pic_holder"><div class="pp_top"><div class="pp_left"></div><div class="pp_middle"></div><div class="pp_right"></div></div><div class="pp_content"><div class="pp_box"><a href="#" class="pp_expand" title="Expand the image">Expand</a><div class="pp_loaderIcon"></div><div class="pp_hoverContainer"><a class="pp_next" href="#">next</a><a class="pp_previous" href="#">previous</a></div><div id="pp_full_res">'+ pp_typeMarkup +'</div><div class="pp_details clearfix"><a class="pp_close" href="#"><span>Закрыть</span></a><p class="pp_description"></p><p class="pp_download"><a href="" title="Download"><img style="vertical-align: middle; margin-right: 5px;" src="/images/ico_download.gif" width="22" height="22" alt="Сохранить фото" />Сохранить фото</a></p><div class="pp_nav"><div><a href="#" class="pp_arrow_previous">Previous</a><p class="currentTextHolder">0'+settings.counter_separator_label+'0</p><a href="#" class="pp_arrow_next">Next</a></div></div></div></div></div><div class="pp_bottom"><div class="pp_left"></div><div class="pp_middle"></div><div class="pp_right"></div></div></div>';

      // Basic html for the title holder
      toInject += '<div class="ppt"></div>';

      $('body').append(toInject);

      // Set my global selectors
      $pp_pic_holder = $('.pp_pic_holder');
      $ppt = $('.ppt');

      $('div.pp_overlay').css('height',$(document).height()).bind('click',function(){
        close();
      });

      $pp_pic_holder.css({'opacity': 0}).addClass(settings.theme);

      $('a.pp_close').bind('click',function(){ close(); return false; });

      $('a.pp_expand').bind('click',function(){
        $this = $(this);

        // Expand the image
        if($this.hasClass('pp_expand')){
          $this.removeClass('pp_expand').addClass('pp_contract');
          doresize = false;
        }else{
          $this.removeClass('pp_contract').addClass('pp_expand');
          doresize = true;
        };

        _hideContent();

        $pp_pic_holder.find('.pp_hoverContainer, #pp_full_res, .pp_details').fadeOut(settings.animationSpeed,function(){
          _preload();
        });

        return false;
      });

      $pp_pic_holder.find('.pp_previous, .pp_arrow_previous').bind('click',function(){
        changePicture('previous');
        return false;
      });

      $pp_pic_holder.find('.pp_next, .pp_arrow_next').bind('click',function(){
        changePicture('next');
        return false;
      });

      /*$pp_pic_holder.find('.pp_hoverContainer').css({
        'margin-left': settings.padding/2
      });*/

      // If it's not a set, hide the links
      if(!isSet) {
        $pp_pic_holder.find('.pp_hoverContainer,.pp_nav').hide();
      };


      // To fix the bug with IE select boxes
      if($.browser.msie && $.browser.version == 6){
        $('body').addClass('ie6');
        $('select').css('visibility','hidden');
      };

      // Then fade it in
      $('div.pp_overlay').css('opacity',0).fadeTo(settings.animationSpeed,settings.opacity, function(){
        $pp_pic_holder.css('opacity',0).fadeIn(settings.animationSpeed,function(){
          $pp_pic_holder.attr('style',/*'left:'+$pp_pic_holder.css('left')+';top:'+$pp_pic_holder.css('top')+*/';');
          _preload();
        });
      });
    };
  };

  function grab_param(name,url){
    name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
    var regexS = "[\\?&]"+name+"=([^&#]*)";
    var regex = new RegExp( regexS );
    var results = regex.exec( url );
    if( results == null )
      return "";
    else
      return results[1];
  }
})(jQuery);