/*
 * jQuery Nivo Slider v2.3
 * http://nivo.dev7studios.com
 *
 * Copyright 2010, Gilbert Pellegrom
 * Free to use and abuse under the MIT license.
 * http://www.opensource.org/licenses/mit-license.php
 * 
 * May 2010 - Pick random effect from specified set of effects by toronegro
 * May 2010 - controlNavThumbsFromRel option added by nerd-sh
 * May 2010 - Do not start nivoRun timer if there is only 1 slide by msielski
 * April 2010 - controlNavThumbs option added by Jamie Thompson (http://jamiethompson.co.uk)
 * March 2010 - manualAdvance option added by HelloPablo (http://hellopablo.co.uk)
 */

(function($) {
    var NivoSlider = function(element, options){
        //Defaults are below
        var settings = $.extend({}, $.fn.nivoSlider.defaults, options);
        //Useful variables. Play carefully.
        var vars = {
            currentSlide: 0,
            currentImage: '',
            totalSlides: 0,
            randAnim: '',
            running: false,
            paused: false,
            stop:false
        };
        //Get this slider
        var slider = $(element);
        slider.data('nivo:vars', vars);
        slider.css('position','relative');
        slider.addClass('nivoSlider');
        //Find our slider children
        var kids = slider.children("img");

        kids.each(function() {
            var child = $(this);
            var link = '';
            if(!child.is('img')){
                if(child.is('a')){
                    child.addClass('nivo-imageLink');
                    link = child;
                }
                child = child.find('img:first');
            }
            //Get img width & height
            var childWidth = child.width();
            if(childWidth == 0) childWidth = child.attr('width');
            var childHeight = child.height();
            if(childHeight == 0) childHeight = child.height();
            //Resize the slider
            if(childWidth > slider.width()){
                slider.width(childWidth);
            }
            if(maxHeight){
                slider.height(maxHeight);
            }else{
                if(childHeight > slider.height()){
                    slider.height(childHeight);
                }
            }
            if(link != ''){
                link.css('display','none');
            }
            child.css('display','none');
            vars.totalSlides++;

        });
       //Set startSlide
       if(settings.startSlide > 0){
            if(settings.startSlide >= vars.totalSlides) settings.startSlide = vars.totalSlides - 1;
            vars.currentSlide = settings.startSlide;
        }
        //Get initial image
        if($(kids[vars.currentSlide]).is('img')){
            vars.currentImage = $(kids[vars.currentSlide]);
        } else {
            vars.currentImage = $(kids[vars.currentSlide]).find('img:first');
        }
         //Show initial link
        if($(kids[vars.currentSlide]).is('a')){
            $(kids[vars.currentSlide]).css('display','block');
       }
        //Set first background
        slider.css('background','#fff url('+ vars.currentImage.attr('src') +') no-repeat');
        //Add initial slices
       for(var i = 0; i < settings.slices; i++){
            var sliceWidth = Math.round(slider.width()/settings.slices);
            if(i == settings.slices-1){
                slider.append(
                    $('<div class="nivo-slice"></div>').css({
                        left:(sliceWidth*i)+'px',
                        width:(slider.width()-(sliceWidth*i))+'px'
                        })
                    );
            } else {
                slider.append(
                    $('<div class="nivo-slice"></div>').css({
                        left:(sliceWidth*i)+'px',
                        width:sliceWidth+'px'
                        })
                    );
            }
        }
        //Create caption
        slider.append(
            $('<div class="nivo-caption"><p></p></div>').css({
                display:'none',
                opacity:settings.captionOpacity
                })
            );
        //Process initial  caption
        if(vars.currentImage.attr('title_div')!= ''){
            $(vars.currentImage.attr('title_div')).html(vars.currentImage.attr('post_title'))
        }
        if(vars.currentImage.attr('txt_div')!= ''){
            $(vars.currentImage.attr('txt_div')).html($(vars.currentImage.attr('post_txt')).html());
        }
        var title = vars.currentImage.attr('title');
        if(title){
            if(title.substr(0,1) == '#') title = $(title).html();
            $('.nivo-caption p', slider).html(title);
            $('.nivo-caption', slider).fadeIn(settings.animSpeed);
        }
        //In the words of Super Mario "let's a go!"
        var timer = 0;
        if(!settings.manualAdvance && kids.length > 1){
            timer = setInterval(function(){
                nivoRun(slider, kids, settings, false);
            }, settings.pauseTime);
        }
        //Add Direction nav
        if(settings.directionNav){
            slider.append('<div class="nivo-directionNav"><a class="nivo-prevNav">Prev</a><a class="nivo-nextNav">Next</a></div>');
            //Hide Direction nav
            if(settings.directionNavHide){
                $('.nivo-directionNav', slider).hide();
                slider.hover(function(){
                    $('.nivo-directionNav', slider).show();
                }, function(){
                    $('.nivo-directionNav', slider).hide();
                });
            }
            $('a.nivo-prevNav', slider).live('click', function(){
                if(vars.running) return false;
                clearInterval(timer);
                timer = '';
                vars.currentSlide-=2;
                nivoRun(slider, kids, settings, 'prev');
            });
            $('a.nivo-nextNav', slider).live('click', function(){
                if(vars.running) return false;
                clearInterval(timer);
                timer = '';
                nivoRun(slider, kids, settings, 'next');
            });
        }
        //Add Control nav
        if(settings.controlNav != undefined){
            var nivoControl = settings.controlNav; /* $('<div class="nivo-controlNav"></div>'); */
            //slider.append(nivoControl);
            for(var i = 0; i < kids.length; i++){
                if(settings.controlNavThumbs){
                    var child = kids.eq(i);
                    if(!child.is('img')){
                        child = child.find('img:first');
                    }
                    if (settings.controlNavThumbsFromRel) {
                        nivoControl.append('<a class="nivo-control" rel="'+ i +'"><img src="'+ child.attr('rel') + '" alt="" /></a>');
                    } else {
                        nivoControl.append('<a class="nivo-control" rel="'+ i +'"><img src="'+ child.attr('src').replace(settings.controlNavThumbsSearch, settings.controlNavThumbsReplace) +'" alt="" /></a>');
                    }
                } else {
                    nivoControl.append('<a class="nivo-control" rel="'+ i +'">'+ (i + 1) +'</a>');
                }
            }
            //Set initial active link
            $('a:eq('+ vars.currentSlide +')', nivoControl).addClass('active');
            $('a', nivoControl).live('click', function(){
                if(vars.running) return false;
                if($(this).hasClass('active')) return false;
                clearInterval(timer);
                timer = '';
                slider.css('background','#fff url('+ vars.currentImage.attr('src') +') no-repeat');
                vars.currentSlide = $(this).attr('rel') - 1;
                nivoRun(slider, kids, settings, 'control');
            });
        }      
        //For pauseOnHover setting
        if(settings.pauseOnHover){
            slider.hover(function(){
                vars.paused = true;
                clearInterval(timer);
                timer = '';
            }, function(){
                vars.paused = false;
                //Restart the timer
                if(timer == '' && !settings.manualAdvance){
                    timer = setInterval(function(){
                        nivoRun(slider, kids, settings, false);
                    }, settings.pauseTime);
                }
            });
        }
        //Event when Animation finishes
        slider.bind('nivo:animFinished', function(){ 
            vars.running = false; 
            //Hide child links
            $(kids).each(function(){
                if($(this).is('a')){
                    $(this).css('display','none');
                }
            });
            //Show current link
            if($(kids[vars.currentSlide]).is('a')){
                $(kids[vars.currentSlide]).css('display','block');
            }
            //Restart the timer
            if(timer == '' && !vars.paused && !settings.manualAdvance){
                timer = setInterval(function(){
                    nivoRun(slider, kids, settings, false);
                }, settings.pauseTime);
            }
            //Trigger the afterChange callback
            settings.afterChange.call(this);
        });
        // Private run method
        var nivoRun = function(slider, kids, settings, nudge){
            //Get our vars
            var vars = slider.data('nivo:vars');
            //Trigger the lastSlide callback
            if(vars && (vars.currentSlide == vars.totalSlides - 1)){ 
                settings.lastSlide.call(this);
            }
            // Stop
            if((!vars || vars.stop) && !nudge) return false;
            //Trigger the beforeChange callback
            settings.beforeChange.call(this);
            //Set current background before change
            if(!nudge){
                slider.css('background','#fff url('+ vars.currentImage.attr('src') +') no-repeat');
            } else {
                if(nudge == 'prev'){
                    slider.css('background','#fff url('+ vars.currentImage.attr('src') +') no-repeat');
                }
                if(nudge == 'next'){
                    slider.css('background','#fff url('+ vars.currentImage.attr('src') +') no-repeat');
                }
            }
            vars.currentSlide++;
            //Trigger the slideshowEnd callback
            if(vars.currentSlide == vars.totalSlides){
                vars.currentSlide = 0;
                settings.slideshowEnd.call(this);
            }
            if(vars.currentSlide < 0) vars.currentSlide = (vars.totalSlides - 1);
            //Set vars.currentImage
            if($(kids[vars.currentSlide]).is('img')){
                vars.currentImage = $(kids[vars.currentSlide]);
            } else {
                vars.currentImage = $(kids[vars.currentSlide]).find('img:first');
            }
            //Set acitve links
            if(settings.controlNav != undefined){
                $('a', settings.controlNav).removeClass('active');
                $('a:eq('+ vars.currentSlide +')', settings.controlNav).addClass('active');
            }
            //Process caption
            if(vars.currentImage.attr('title') != ''){
                var title = vars.currentImage.attr('title');
                if(title.substr(0,1) == '#') title = $(title).html();
                if($('.nivo-caption', slider).css('display') == 'block'){
                    $('.nivo-caption p', slider).fadeOut(settings.animSpeed, function(){
                        $(this).html(title);
                        $(this).fadeIn(settings.animSpeed);
                    });
                } else {
                    $('.nivo-caption p', slider).html(title);
                }
                $('.nivo-caption', slider).fadeIn(settings.animSpeed);
            } else {
                $('.nivo-caption', slider).fadeOut(settings.animSpeed);
            }
            if(vars.currentImage.attr('title_div') != ''){
                var titleDiv =vars.currentImage.attr('post_title');
                    $(vars.currentImage.attr('title_div')).fadeOut(settings.animSpeed, function(){
                        $(this).html(titleDiv);
                        $(this).fadeIn(settings.animSpeed);
                    });

                $(vars.currentImage.attr('title_div')).fadeIn(settings.animSpeed);
            } else {
                $(vars.currentImage.attr('title_div')).fadeOut(settings.animSpeed);
            }
            if(vars.currentImage.attr('txt_div') != ''){
                var slidetxt =$(vars.currentImage.attr('post_txt')).html();
                    $(vars.currentImage.attr('txt_div')).fadeOut(settings.animSpeed, function(){
                        $(this).html(slidetxt);
                        $(this).fadeIn(settings.animSpeed);
                    });

                $(vars.currentImage.attr('txt_div')).fadeIn(settings.animSpeed);
            } else {
                $(vars.currentImage.attr('txt_div')).fadeOut(settings.animSpeed);
            }
            //Set new slice backgrounds
            var  i = 0;
            $('.nivo-slice', slider).each(function(){
                var sliceWidth = Math.round(slider.width()/settings.slices);
                $(this).css({
                    height:'0px',
                    opacity:'0',
                    background: '#fff url('+ vars.currentImage.attr('src') +') no-repeat -'+ ((sliceWidth + (i * sliceWidth)) - sliceWidth) +'px 0%'
                    });
                i++;
            });
           if(settings.effect == 'random'){
                var anims = new Array("sliceDownRight","sliceDownLeft","sliceUpRight","sliceUpLeft","sliceUpDown","sliceUpDownLeft","fold","fade");
                vars.randAnim = anims[Math.floor(Math.random()*(anims.length + 1))];
                if(vars.randAnim == undefined) vars.randAnim = 'fade';
            }
           //Run random effect from specified set (eg: effect:'fold,fade')
            if(settings.effect.indexOf(',') != -1){
                var anims = settings.effect.split(',');
                vars.randAnim = $.trim(anims[Math.floor(Math.random()*anims.length)]);
            }
            //Run effects
            vars.running = true;
            if(settings.effect == 'sliceDown' || settings.effect == 'sliceDownRight' || vars.randAnim == 'sliceDownRight' ||
                settings.effect == 'sliceDownLeft' || vars.randAnim == 'sliceDownLeft'){
                var timeBuff = 0;
                var i = 0;
                var slices = $('.nivo-slice', slider);
                if(settings.effect == 'sliceDownLeft' || vars.randAnim == 'sliceDownLeft') slices = $('.nivo-slice', slider)._reverse();
                slices.each(function(){
                    var slice = $(this);
                    slice.css('top','0px');
                    if(i == settings.slices-1){
                        setTimeout(function(){
                            slice.animate({
                                height:'100%',
                                opacity:'1.0'
                            }, settings.animSpeed, '', function(){
                                slider.trigger('nivo:animFinished');
                            });
                        }, (100 + timeBuff));
                    } else {
                        setTimeout(function(){
                            slice.animate({
                                height:'100%',
                                opacity:'1.0'
                            }, settings.animSpeed);
                        }, (100 + timeBuff));
                    }
                    timeBuff += 50;
                    i++;
                });
            }else if(settings.effect == 'sliceUp' || settings.effect == 'sliceUpRight' || vars.randAnim == 'sliceUpRight' ||
                settings.effect == 'sliceUpLeft' || vars.randAnim == 'sliceUpLeft'){
                var timeBuff = 0;
                var i = 0;
                var slices = $('.nivo-slice', slider);
                if(settings.effect == 'sliceUpLeft' || vars.randAnim == 'sliceUpLeft') slices = $('.nivo-slice', slider)._reverse();
                slices.each(function(){
                   var slice = $(this);
                    slice.css('bottom','0px');
                    if(i == settings.slices-1){
                        setTimeout(function(){
                            slice.animate({
                                height:'100%',
                                opacity:'1.0'
                            }, settings.animSpeed, '', function(){
                                slider.trigger('nivo:animFinished');
                            });
                        }, (100 + timeBuff));
                    } else {

                        setTimeout(function(){

                            slice.animate({
                                height:'100%',
                                opacity:'1.0'
                            }, settings.animSpeed);

                        }, (100 + timeBuff));

                    }

                    timeBuff += 50;

                    i++;

                });

            }else if(settings.effect == 'sliceUpDown' || settings.effect == 'sliceUpDownRight' || vars.randAnim == 'sliceUpDown' ||
                settings.effect == 'sliceUpDownLeft' || vars.randAnim == 'sliceUpDownLeft'){
                var timeBuff = 0;
                var i = 0;
                var v = 0;
                var slices = $('.nivo-slice', slider);
                if(settings.effect == 'sliceUpDownLeft' || vars.randAnim == 'sliceUpDownLeft') slices = $('.nivo-slice', slider)._reverse();
                slices.each(function(){
                    var slice = $(this);
                    if(i == 0){
                        slice.css('top','0px');
                        i++;
                    } else {
                        slice.css('bottom','0px');
                        i = 0;
                    }
                    if(v == settings.slices-1){
                        setTimeout(function(){
                            slice.animate({
                                height:'100%',
                                opacity:'1.0'
                            }, settings.animSpeed, '', function(){
                                slider.trigger('nivo:animFinished');
                            });
                        }, (100 + timeBuff));
                    } else {
                        setTimeout(function(){
                            slice.animate({
                                height:'100%',
                                opacity:'1.0'
                            }, settings.animSpeed);

                        }, (100 + timeBuff));
                    }
                    timeBuff += 50;
                    v++;
                });
            }else if(settings.effect == 'fold' || vars.randAnim == 'fold'){
                var timeBuff = 0;
                var i = 0;
                $('.nivo-slice', slider).each(function(){
                    var slice = $(this);
                    var origWidth = slice.width();
                    slice.css({
                        top:'0px',
                        height:'100%',
                        width:'0px'
                    });
                    if(i == settings.slices-1){
                        setTimeout(function(){
                            slice.animate({
                                width:origWidth,
                                opacity:'1.0'
                            }, settings.animSpeed, '', function(){
                                slider.trigger('nivo:animFinished');
                            });
                        }, (100 + timeBuff));
                    } else {
                        setTimeout(function(){
                            slice.animate({
                                width:origWidth,
                                opacity:'1.0'
                            }, settings.animSpeed);
                        }, (100 + timeBuff));
                    }
                   timeBuff += 50;
                    i++;
                });
            } else if(settings.effect == 'fade' || vars.randAnim == 'fade'){
                var i = 0;
                $('.nivo-slice', slider).each(function(){
                    $(this).css('height','100%');
                    if(i == settings.slices-1){
                        $(this).animate({
                            opacity:'1.0'
                        }, (settings.animSpeed*2), '', function(){
                            slider.trigger('nivo:animFinished');
                        });
                    } else {
                        $(this).animate({
                            opacity:'1.0'
                        }, (settings.animSpeed*2));
                    }
                    i++;
                });
            }
        }
        // For debugging
        var trace = function(msg){
            if (this.console && typeof console.log != "undefined")
                console.log(msg);
        }
        // Start / Stop
        this.stop = function(){
            if(!$(element).data('nivo:vars').stop){
                $(element).data('nivo:vars').stop = true;
                trace('Stop Slider');
            }
        }
        this.start = function(){
            if($(element).data('nivo:vars').stop){
                $(element).data('nivo:vars').stop = false;
                trace('Start Slider');
            }
        }
        //Trigger the afterLoad callback
        settings.afterLoad.call(this);
    };
    $.fn.nivoSlider = function(options) {
        return this.each(function(){
            var element = $(this);
            // Return early if this element already has a plugin instance
            if (element.data('nivoslider')) return;
            // Pass options to plugin constructor
            var nivoslider = new NivoSlider(this, options);
            // Store plugin object in this element's data
            element.data('nivoslider', nivoslider);
        });
    };
    //Default settings
    $.fn.nivoSlider.defaults = {
        effect:'random',
        slices:15,
        animSpeed:500,
        pauseTime:3000,
        startSlide:0,
        directionNav:true,
        directionNavHide:true,
        /* controlNav:true, */
        controlNavThumbs:false,
        controlNavThumbsFromRel:false,
        controlNavThumbsSearch:'.jpg',
        controlNavThumbsReplace:'_thumb.jpg',
        keyboardNav:true,
        pauseOnHover:true,
        manualAdvance:false,
        captionOpacity:0.8,
        beforeChange: function(){},
        afterChange: function(){},
        slideshowEnd: function(){},
        lastSlide: function(){},
        afterLoad: function(){}
    };
    $.fn._reverse = [].reverse;
})(jQuery);