// JavaScript Document

/* ------------------------------------------------------------------------

    Class: prettyPhoto

    Use: Lightbox clone for jQuery

    Author: Stephane Caron (http://www.no-margin-for-errors.com)

    Version: 2.5.4

------------------------------------------------------------------------- */



(function($) {

    $.prettyPhoto = {version: '2.5.4'};

    

    $.fn.prettyPhoto = function(settings) {

        settings = jQuery.extend({

            animationSpeed: 'normal', /* fast/slow/normal */

            padding: 40, /* padding for each side of the picture */

            opacity: 0.60, /* Value between 0 and 1 */

            showTitle: true, /* true/false */

            allowresize: true, /* true/false */

            counter_separator_label: '/', /* The separator for the gallery counter 1 "of" 2 */

            theme: 'dark_square', /* light_rounded / dark_rounded / light_square / dark_square */

            hideflash: false, /* Hides all the flash object on a page, set to TRUE if flash appears over prettyPhoto */

            modal: false, /* If set to true, only the close button will close the window */

            changepicturecallback: function(){}, /* Called everytime an item is shown/changed */

            callback: function(){} /* Called when prettyPhoto is closed */

        }, settings);

        

        // Fallback to a supported theme for IE6

        if($.browser.msie && $.browser.version == 6){

            settings.theme = "light_square";

        }

        

        if($('.pp_overlay').size() == 0) {

            _buildOverlay(); // If the overlay is not there, inject it!

        }else{

            // Set my global selectors

            $pp_pic_holder = $('.pp_pic_holder');

            $ppt = $('.ppt');

        }

        

        // Global variables accessible only by prettyPhoto

        var doresize = true, percentBased = false, correctSizes,

        

        // Cached selectors

        $pp_pic_holder, $ppt,

        

        // prettyPhoto container specific

        pp_contentHeight, pp_contentWidth, pp_containerHeight, pp_containerWidth, pp_type = 'image',

    

        //Gallery specific

        setPosition = 0,



        // Global elements

        $scrollPos = _getScroll();

    

        // Window/Keyboard events

        $(window).scroll(function(){ $scrollPos = _getScroll(); _centerOverlay(); _resizeOverlay(); });

        $(window).resize(function(){ _centerOverlay(); _resizeOverlay(); });

        $(document).keydown(function(e){

            if($pp_pic_holder.is(':visible'))

            switch(e.keyCode){

                case 37:

                    $.prettyPhoto.changePage('previous');

                    break;

                case 39:

                    $.prettyPhoto.changePage('next');

                    break;

                case 27:

                    if(!settings.modal)

                    $.prettyPhoto.close();

                    break;

            };

        });

    

        // Bind the code to each links

        $(this).each(function(){

            $(this).bind('click',function(){

                

                link = this; // Fix scoping

                

                // Find out if the picture is part of a set

                theRel = $(this).attr('rel');

                galleryRegExp = /\[(?:.*)\]/;

                theGallery = galleryRegExp.exec(theRel);

                

                // Build the gallery array

                var images = new Array(), titles = new Array(), descriptions = new Array();

                if(theGallery){

                    $('a[rel*='+theGallery+']').each(function(i){

                        if($(this)[0] === $(link)[0]) setPosition = i; // Get the position in the set

                        images.push($(this).attr('href'));

                        titles.push($(this).find('img').attr('alt'));

                        descriptions.push($(this).attr('title'));

                    });

                }else{

                    images = $(this).attr('href');

                    titles = ($(this).find('img').attr('alt')) ?  $(this).find('img').attr('alt') : '';

                    descriptions = ($(this).attr('title')) ?  $(this).attr('title') : '';

                }



                $.prettyPhoto.open(images,titles,descriptions);

                return false;

            });

        });

    

        

        /**

        * Opens the prettyPhoto modal box.

        * @param image {String,Array} Full path to the image to be open, can also be an array containing full images paths.

        * @param title {String,Array} The title to be displayed with the picture, can also be an array containing all the titles.

        * @param description {String,Array} The description to be displayed with the picture, can also be an array containing all the descriptions.

        */

        $.prettyPhoto.open = function(gallery_images,gallery_titles,gallery_descriptions) {

            // To fix the bug with IE select boxes

            if($.browser.msie && $.browser.version == 6){

                $('select').css('visibility','hidden');

            };

            

            // Hide the flash

            if(settings.hideflash) $('object,embed').css('visibility','hidden');

            

            // Convert everything to an array in the case it's a single item

            images = $.makeArray(gallery_images);

            titles = $.makeArray(gallery_titles);

            descriptions = $.makeArray(gallery_descriptions);

            

            if($('.pp_overlay').size() == 0) {

                _buildOverlay(); // If the overlay is not there, inject it!

            }else{

                // Set my global selectors

                $pp_pic_holder = $('.pp_pic_holder');

                $ppt = $('.ppt');

            }

            

            $pp_pic_holder.attr('class','pp_pic_holder ' + settings.theme); // Set the proper theme



            isSet = ($(images).size() > 0) ?  true : false; // Find out if it's a set



            _getFileType(images[setPosition]); // Set the proper file type



            _centerOverlay(); // Center it



            // Hide the next/previous links if on first or last images.

            _checkPosition($(images).size());

        

            $('.pp_loaderIcon').show(); // Do I need to explain?

        

            // Fade the content in

            $('div.pp_overlay').show().fadeTo(settings.animationSpeed,settings.opacity, function(){

                $pp_pic_holder.fadeIn(settings.animationSpeed,function(){

                    // Display the current position

                    $pp_pic_holder.find('p.currentTextHolder').text((setPosition+1) + settings.counter_separator_label + $(images).size());



                    // Set the description

                    if(descriptions[setPosition]){

                        $pp_pic_holder.find('.pp_description').show().html(unescape(descriptions[setPosition]));

                    }else{

                        $pp_pic_holder.find('.pp_description').hide().text('');

                    };



                    // Set the title

                    if(titles[setPosition] && settings.showTitle){

                        hasTitle = true;

                        $ppt.html(unescape(titles[setPosition]));

                    }else{

                        hasTitle = false;

                    };

                    

                    // Inject the proper content

                    if(pp_type == 'image'){

                        // Set the new image

                        imgPreloader = new Image();



                        // Preload the neighbour images

                        nextImage = new Image();

                        if(isSet && setPosition > $(images).size()) nextImage.src = images[setPosition + 1];

                        prevImage = new Image();

                        if(isSet && images[setPosition - 1]) prevImage.src = images[setPosition - 1];



                        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',images[setPosition]);



                        imgPreloader.onload = function(){

                            // Fit item to viewport

                            correctSizes = _fitToViewport(imgPreloader.width,imgPreloader.height);

                            

                            _showContent();

                        };



                        imgPreloader.src = images[setPosition];

                    }else{

                        // Get the dimensions

                         movie_width = ( parseFloat(grab_param('width',images[setPosition])) ) ? grab_param('width',images[setPosition]) : "600";
                        movie_height = ( parseFloat(grab_param('height',images[setPosition])) ) ? grab_param('height',images[setPosition]) : "450";



                        // If the size is % based, calculate according to window dimensions

                        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;

                            percentBased = true;

                        }



                        movie_height = parseFloat(movie_height);

                        movie_width = parseFloat(movie_width);



                        if(pp_type == 'quicktime') movie_height+=15; // Add space for the control bar



                        // Fit item 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" fs="1" value="true" /><param name="allowscriptaccess" value="always" /><param name="movie" value="http://www.youtube.com/v/'+grab_param('v',images[setPosition])+'" /><embed src="http://www.youtube.com/v/'+grab_param('v',images[setPosition])+'" type="application/x-shockwave-flash" allowfullscreen="true" fs="1" 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="'+images[setPosition]+'"><param name="autoplay" value="true"><param name="type" value="video/quicktime"><embed src="'+images[setPosition]+'" 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 = images[setPosition];

                            flash_vars = flash_vars.substring(images[setPosition].indexOf('flashvars') + 10,images[setPosition].length);



                            filename = images[setPosition];

                            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 = images[setPosition];

                            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>';

                        }



                        // Show content

                        _showContent();

                    }

                });

            });

        };

        

        /**

        * Change page in the prettyPhoto modal box

        * @param direction {String} Direction of the paging, previous or next.

        */

        $.prettyPhoto.changePage = function(direction){

            if(direction == 'previous') {

                setPosition--;

                if (setPosition < 0){

                    setPosition = 0;

                    return;

                }

            }else{

                if($('.pp_arrow_next').is('.disabled')) return;

                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');

                $.prettyPhoto.open(images,titles,descriptions);

            });

        };

        

        /**

        * Closes the prettyPhoto modal box.

        */

        $.prettyPhoto.close = function(){

            $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');

                };

                

                // Show the flash

                if(settings.hideflash) $('object,embed').css('visibility','visible');

                

                setPosition = 0;

                

                settings.callback();

            });

            

            doresize = true;

        };

    

        /**

        * Set the proper sizes on the containers and animate the content in.

        */

        _showContent = function(){

            $('.pp_loaderIcon').hide();



            if($.browser.opera) {

                windowHeight = window.innerHeight;

                windowWidth = window.innerWidth;

            }else{

                windowHeight = $(window).height();

                windowWidth = $(window).width();

            };



            // Calculate the opened top position of the pic holder

            projectedTop = $scrollPos['scrollTop'] + ((windowHeight/2) - (correctSizes['containerHeight']/2));

            if(projectedTop < 0) projectedTop = 0 + $pp_pic_holder.find('.ppt').height();



            // Resize the content holder

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

            

            // Resize picture the holder

            $pp_pic_holder.animate({

                'top': projectedTop,

                'left': ((windowWidth/2) - (correctSizes['containerWidth']/2)),

                'width': correctSizes['containerWidth']

            },settings.animationSpeed,function(){

                $pp_pic_holder.width(correctSizes['containerWidth']);

                $pp_pic_holder.find('.pp_hoverContainer,#fullResImage').height(correctSizes['height']).width(correctSizes['width']);



                // Fade the new image

                $pp_pic_holder.find('#pp_full_res').fadeIn(settings.animationSpeed);



                // 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 - 20,

                        'left' : $pp_pic_holder.offset().left + (settings.padding/2),

                        'display' : 'none'

                    });



                    $ppt.fadeIn(settings.animationSpeed);

                };

            

                // Fade the resizing link if the image is resized

                if(correctSizes['resized']) $('a.pp_expand,a.pp_contract').fadeIn(settings.animationSpeed);

                

                // Once everything is done, inject the content if it's now a photo

                if(pp_type != 'image') $pp_pic_holder.find('#pp_full_res')[0].innerHTML = pp_typeMarkup;

                

                // Callback!

                settings.changepicturecallback();

            });

        };

        

        /**

        * Hide the content...DUH!

        */

        function _hideContent(){

            // Fade out the current picture

            $pp_pic_holder.find('#pp_full_res object,#pp_full_res embed').css('visibility','hidden');

            $pp_pic_holder.find('.pp_hoverContainer,.pp_details').fadeOut(settings.animationSpeed);

            $pp_pic_holder.find('#pp_full_res').fadeOut(settings.animationSpeed,function(){

                $('.pp_loaderIcon').show();

            });

            

            // Hide the title

            $ppt.fadeOut(settings.animationSpeed);

        }

    

        /**

        * Check the item position in the gallery array, hide or show the navigation links

        * @param setCount {integer} The total number of items in the set

        */

        function _checkPosition(setCount){

            // If at the end, hide the next link

            if(setPosition == setCount-1) {

                $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(){

                    $.prettyPhoto.changePage('next');

                    return false;

                });

            };

        

            // If at the beginning, hide the previous link

            if(setPosition == 0) {

                $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(){

                    $.prettyPhoto.changePage('previous');

                    return false;

                });

            };

            

            // Hide the bottom nav if it's not a set.

            if(setCount > 1) {

                $('.pp_nav').show();

            }else{

                $('.pp_nav').hide();

            }

        };

    

        /**

        * Resize the item dimensions if it's bigger than the viewport

        * @param width {integer} Width of the item to be opened

        * @param height {integer} Height of the item to be opened

        * @return An array containin the "fitted" dimensions

        */

        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

            };

        };

        

        /**

        * Get the containers dimensions according to the item size

        * @param width {integer} Width of the item to be opened

        * @param height {integer} Height of the item to be opened

        */

        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(itemSrc){

            if (itemSrc.match(/youtube\.com\/watch/i)) {

                pp_type = 'youtube';

            }else if(itemSrc.indexOf('.mov') != -1){ 

                pp_type = 'quicktime';

            }else if(itemSrc.indexOf('.swf') != -1){

                pp_type = 'flash';

            }else if(itemSrc.indexOf('iframe') != -1){

                pp_type = 'iframe'

            }else{

                pp_type = 'image';

            };

        };

    

        function _centerOverlay(){

            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)

                });

        

                $ppt.css({

                    'top' : projectedTop - $tHeight,

                    'left' : (windowWidth/2) + $scrollPos['scrollLeft'] - ($pWidth/2) + (settings.padding/2)

                });

            };

        };

    

        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>";

            

            // 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"><a href="#" class="pp_expand" title="Փոփոխել նկարի չափերը">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"></div><div class="pp_details clearfix"><a class="pp_close" href="#">Close</a><p class="pp_description"></p><div class="pp_nav"><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 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);

            

            // So it fades nicely

            $('div.pp_overlay').css('opacity',0);

            

            // Set my global selectors

            $pp_pic_holder = $('.pp_pic_holder');

            $ppt = $('.ppt');

            

            $('div.pp_overlay').css('height',$(document).height()).hide().bind('click',function(){

                if(!settings.modal)

                $.prettyPhoto.close();

            });



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



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

                $this = $(this); // Fix scoping

                

                // 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_details').fadeOut(settings.animationSpeed);

                $pp_pic_holder.find('#pp_full_res').fadeOut(settings.animationSpeed,function(){

                    $.prettyPhoto.open(images,titles,descriptions);

                });

        

                return false;

            });

        

            $pp_pic_holder.find('.pp_previous, .pp_arrow_previous').bind('click',function(){

                $.prettyPhoto.changePage('previous');

                return false;

            });

        

            $pp_pic_holder.find('.pp_next, .pp_arrow_next').bind('click',function(){

                $.prettyPhoto.changePage('next');

                return false;

            });



            $pp_pic_holder.find('.pp_hoverContainer').css({

                'margin-left': settings.padding/2

            });

        };

    };

    

    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);
