/**
 * jQuery Plugin Paginator 3000 + v 1.1 
 * 
 * JavaScript Paginator based on Paginator 3000 
 * 
 * Copyright (C) 2010 Web Sites Dewelopment Laboratory. All rights reserved. 
 * Site http://www.cyberapp.ru/
 */
 
;
(function($){
    
$.fn.paginator=function(s){
    var options={
        pagesTotal:1,
        pagesSpan:10,
        pageCurrent:50,
        baseUrl:document.location+'&page=%number%',
        builCounter:function(page){
            return page;
        },
        clickHandler:null,
        returnOrder:false,
        lang:{
            next:"Следующая",
            last:"Последняя",
            prior:"Предыдущая",
            first:"Первая",
            arrowRight:String.fromCharCode(8594),
            arrowLeft:String.fromCharCode(8592)
            }
        };
    
$.extend(options,s);
    options.pagesSpan=options.pagesSpan<options.pagesTotal?options.pagesSpan:options.pagesTotal;
    options.pageCurrent=options.pagesTotal<options.pageCurrent?options.pagesTotal:options.pageCurrent;
    if(!options.baseUrl.match(/%number%/i))options.baseUrl+='%number%';
    var html={};
    
    function prepareHtml(el){
    $(el).html(makePagesTableHtml());
    if(options.pagesTotal==options.pagesSpan){
        $(el).addClass('fulsize');
    };
    
    html={
        holder:el,
        table:$(el).find('table:last'),
        trPages:$(el).find('table:last tr:first'),
        tdsPages:$(el).find('table:last tr:first td'),
        scrollBar:$(el).find('div.scroll_bar'),
        scrollThumb:$(el).find('div.scroll_thumb'),
        pageCurrentMark:$(el).find('div.current_page_mark')
        };
    
};

function getLink(page){
    return options.baseUrl.replace(/%number%/i,options.builCounter(page));
}
function makePagesTableHtml(){
    var next_page=(parseInt(options.pageCurrent)<parseInt(options.pagesTotal))?parseInt(options.pageCurrent)+1:options.pagesTotal;
    var next='<a href="'+getLink(next_page)+'" rel="'+next_page+'">%next%</a>';
    var last='<a href="'+getLink(options.pagesTotal)+'" rel="'+options.pagesTotal+'">%last%</a>';
    var prior_page=(parseInt(options.pageCurrent)>1)?parseInt(options.pageCurrent)-1:1;
    var prior='<a href="'+getLink(prior_page)+'" rel="'+prior_page+'">%prior%</a>';
    var first='<a href="'+getLink(1)+'" rel="'+1+'">%first%</a>';
    if(options.returnOrder){
        var top_left=options.lang.arrowLeft+' '+options.lang.next;
        var bottom_left=options.lang.last;
        var top_right=options.lang.prior+' '+options.lang.arrowRight;
        var bottom_right=options.lang.first;
        if(options.pageCurrent!==options.pagesTotal){
            top_left=next.replace(/%next%/,top_left);
            bottom_left=last.replace(/%last%/,bottom_left);
        };
        
        if(options.pageCurrent!==1){
            top_right=prior.replace(/%prior%/,top_right);
            bottom_right=first.replace(/%first%/,bottom_right);
        };
    
}else{
    var top_left=options.lang.arrowLeft+' '+options.lang.prior;
    var top_right=options.lang.next+' '+options.lang.arrowRight;
    var bottom_left=options.lang.first;
    var bottom_right=options.lang.last;
    if(options.pageCurrent!==options.pagesTotal){
        top_right=next.replace(/%next%/,top_right);
        bottom_right=last.replace(/%last%/,bottom_right);
    };
    
    if(options.pageCurrent!==1){
        top_left=prior.replace(/%prior%/,top_left);
        bottom_left=first.replace(/%first%/,bottom_left);
    };

};

tdWidth=(100/(options.pagesSpan+2))+'%';
code='<table width="100%">'+'<tr>'+'<td class="left top">'+top_left+'</td>'+'<td class="spaser" />'+'<td rowspan="2" align="center">'+'<table>'+'<tr>';
for(i=1;i<=options.pagesSpan;i++){
    code+='<td width="'+tdWidth+'" />';
}
code+='</tr>'+'<tr>'+'<td colspan="'+options.pagesSpan+'">'+'<div class="scroll_bar">'+'<div class="scroll_trough" />'+'<div class="scroll_thumb">'+'<div class="scroll_knob" />'+'</div>'+'<div class="current_page_mark" />'+'</div>'+'</td>'+'</tr>'+'</table>'+'</td>'+'<td class="spaser" />'+'<td class="right top">'+top_right+'</td>'+'</tr>'+'<tr>'+'<td class="left bottom">'+bottom_left+'</td>'+'<td class="spaser" />'+'<td class="spaser" />'+'<td class="right bottom">'+bottom_right+'</td>'+'</tr>'+'</table>';
return code;
};

function initScrollThumb(){
    html.scrollThumb.widthMin='8';
    html.scrollThumb.widthPercent=options.pagesSpan/options.pagesTotal*100;
    html.scrollThumb.xPosPageCurrent=(options.pageCurrent-Math.round(options.pagesSpan/2))/options.pagesTotal*$(html.table).width();
    if(options.returnOrder){
        html.scrollThumb.xPosPageCurrent=$(html.table).width()-(html.scrollThumb.xPosPageCurrent+Math.round(options.pagesSpan/2)/options.pagesTotal*$(html.table).width());
    }
    html.scrollThumb.xPos=html.scrollThumb.xPosPageCurrent;
    html.scrollThumb.xPosMin=0;
    html.scrollThumb.xPosMax;
    html.scrollThumb.widthActual;
    setScrollThumbWidth();
};

function setScrollThumbWidth(){
    $(html.scrollThumb).css({
        width:html.scrollThumb.widthPercent+"%"
        });
    html.scrollThumb.widthActual=$(html.scrollThumb).width();
    if(html.scrollThumb.widthActual<html.scrollThumb.widthMin)
        $(html.scrollThumb).css('width',html.scrollThumb.widthMin+'px');
    html.scrollThumb.xPosMax=$(html.table).width-html.scrollThumb.widthActual;
};

function moveScrollThumb(){
    $(html.scrollThumb).css("left",html.scrollThumb.xPos+"px");
}
function initPageCurrentMark(){
    html.pageCurrentMark.widthMin='3';
    html.pageCurrentMark.widthPercent=100/options.pagesTotal;
    html.pageCurrentMark.widthActual;
    setPageCurrentPointWidth();
    movePageCurrentPoint();
};

function setPageCurrentPointWidth(){
    $(html.pageCurrentMark).css("width",html.pageCurrentMark.widthPercent+'%');
    html.pageCurrentMark.widthActual=$(html.pageCurrentMark).width();
    if(html.pageCurrentMark.widthActual<html.pageCurrentMark.widthMin)
        $(html.pageCurrentMark).css("width",html.pageCurrentMark.widthMin+'px');
};

function movePageCurrentPoint(){
    var pos=0;
    if(html.pageCurrentMark.widthActual<$(html.pageCurrentMark).width()){
        pos=(options.pageCurrent-1)/options.pagesTotal*$(html.table).width()-$(html.pageCurrentMark).width()/2;
    }else{
        pos=(options.pageCurrent-1)/options.pagesTotal*$(html.table).width();
    };
    
    if(options.returnOrder)pos=$(html.table).width()-pos-$(html.pageCurrentMark).width();
    $(html.pageCurrentMark).css({
        left:pos+'px'
        });
};

function initEvents(){
    moveScrollThumb();
    options.returnOrder?drawReturn():drawPages();
    $(html.scrollThumb).bind('mousedown',function(e){
        var dx=e.pageX-html.scrollThumb.xPos;
        $(document).bind('mousemove',function(e){
            html.scrollThumb.xPos=e.pageX-dx;
            moveScrollThumb();
            options.returnOrder?drawReturn():drawPages();
        });
        $(document).bind('mouseup',function(){
            $(document).unbind('mousemove');
            enableSelection();
        });
        disableSelection();
    });
    $(html.holder).find('a[rel!=""]').bind('click',function(e){
        return options.clickHandler($(this).attr('rel'));
    });
    $(window).resize(function(){
        setPageCurrentPointWidth();
        movePageCurrentPoint();
        setScrollThumbWidth();
    });
    function executeLink(el){
        if($.isFunction(options.clickHandler)){
            $(el).click();
        }else{
            document.location=$(el).attr('href');
        };
    
}
$(document).keydown(function(e){
    if(e.ctrlKey){
        switch(e.keyCode?e.keyCode:e.which?e.which:null){
            case 0x25:
                executeLink($(options.returnOrder?'.right.top a':'.left.top a',html.holder));
                break;
            case 0x27:
                executeLink($(options.returnOrder?'.left.top a':'.right.top a',html.holder));
                break;
        }
    }
})
};

function bindLink(el){
    if($.isFunction(options.clickHandler)){
        $(el).find('a').bind('click',function(){
            return options.clickHandler(options.builCounter($(this).text()));
        });
    }
}
function drawPages(){
    var percentFromLeft=html.scrollThumb.xPos/$(html.table).width();
    var cellFirstValue=Math.round(percentFromLeft*options.pagesTotal);
    var data="";
    if(cellFirstValue<1){
        cellFirstValue=1;
        html.scrollThumb.xPos=0;
        moveScrollThumb();
    }else if(cellFirstValue>=options.pagesTotal-options.pagesSpan){
        cellFirstValue=options.pagesTotal-options.pagesSpan+1;
        html.scrollThumb.xPos=$(html.table).width()-$(html.scrollThumb).width();
        moveScrollThumb();
    };
    
    for(var i=0;i<html.tdsPages.length;i++){
        var cellCurrentValue=cellFirstValue+i;
        if(cellCurrentValue==options.pageCurrent){
            data='<span><strong>'+cellCurrentValue+'</strong></span>';
        }else{
            data='<span><a href="'+getLink(cellCurrentValue)+'">'+cellCurrentValue+'</a></span>';
        };
        
        $(html.tdsPages[i]).html(data);
        bindLink(html.tdsPages[i]);
    };
    
};

function drawReturn(){
    var percentFromLeft=html.scrollThumb.xPos/$(html.table).width();
    var cellFirstValue=options.pagesTotal-Math.round(percentFromLeft*options.pagesTotal);
    var data="";
    if(cellFirstValue<options.pagesSpan){
        cellFirstValue=options.pagesSpan;
        html.scrollThumb.xPos=$(html.table).width()-$(html.scrollThumb).width();
        moveScrollThumb();
    }else if(cellFirstValue>=options.pagesTotal){
        cellFirstValue=options.pagesTotal;
        html.scrollThumb.xPos=0;
        moveScrollThumb();
    };
    
    for(var i=0;i<html.tdsPages.length;i++){
        var cellCurrentValue=cellFirstValue-i;
        if(cellCurrentValue==options.pageCurrent){
            data='<span><strong>'+cellCurrentValue+'</strong></span>';
        }else{
            data='<span><a href="'+getLink(cellCurrentValue)+'">'+cellCurrentValue+'</a></span>';
        };
        
        $(html.tdsPages[i]).html(data);
        bindLink(html.tdsPages[i]);
    };
    
};

function enableSelection(){
    document.onselectstart=function(){
        return true;
    };

};

function disableSelection(){
    document.onselectstart=function(){
        return false;
    };
    
    $(html.scrollThumb).focus();
};

prepareHtml(this);
initScrollThumb();
initPageCurrentMark();
initEvents();
};

})(jQuery);