/*
Supersized - Fullscreen Slideshow jQuery Plugin
By Sam Dunn (www.buildinternet.com // www.onemightyroar.com)
Version: supersized.2.0.js // Relase Date: 5/7/09
Website: www.buildinternet.com/project/supersized
Thanks to Aen for preloading, fade effect, & vertical centering
*/

(function ($) {

    //Resize image on ready or resize
    $.fn.supersized = function () {
        $.inAnimation = false;
        $.paused = false;
        var options = $.extend($.fn.supersized.defaults, $.fn.supersized.options);

        $(window).bind("load", function () {
            $('#loading').hide();
            $('#supersize').fadeIn('fast');
            $('#content').show();
            if ($('#slideshow .activeslide').length == 0) $('#supersize a:first').addClass('activeslide');
            if (options.slide_captions == 1) $('#slidecaption').html($('#supersize .activeslide').find('img').attr('title'));
            if (options.navigation == 0) $('#navigation').hide();
            //Slideshow
            if (options.slideshow == 1) {
                if (options.slide_counter == 1) { //Initiate slide counter if active
                    $('#slidecounter .slidenumber').html(1);
                    $('#slidecounter .totalslides').html($("#supersize > *").size());
                }
                slideshow_interval = setInterval("nextslide()", options.slide_interval);
                if (options.navigation == 1) { //Skip if no navigation
                    $('#navigation a').click(function () {
                        $(this).blur();
                        return false;
                    });
                    //Slide Navigation
                    $('#nextslide').click(function () {
                        if ($.paused) return false; if ($.inAnimation) return false;
                        clearInterval(slideshow_interval);
                        nextslide();
                        slideshow_interval = setInterval(nextslide, options.slide_interval);
                        return false;
                    });
                    $('#prevslide').click(function () {
                        if ($.paused) return false; if ($.inAnimation) return false;
                        clearInterval(slideshow_interval);
                        prevslide();
                        slideshow_interval = setInterval(nextslide, options.slide_interval);
                        return false;
                    });
                    $('#nextslide img').hover(function () {
                        if ($.paused == true) return false;
                        $(this).attr("src", "../grafx/supersized/forward.gif");
                    }, function () {
                        if ($.paused == true) return false;
                        $(this).attr("src", "../grafx/supersized/forward_dull.gif");
                    });
                    $('#prevslide img').hover(function () {
                        if ($.paused == true) return false;
                        $(this).attr("src", "../grafx/supersized/back.gif");
                    }, function () {
                        if ($.paused == true) return false;
                        $(this).attr("src", "../grafx/supersized/back_dull.gif");
                    });

                    //Play/Pause Button
                    $('#pauseplay').click(function () {
                        if ($.inAnimation) return false;
                        var src = ($(this).find('img').attr("src") === "../grafx/supersized/play.gif") ? "../grafx/supersized/pause.gif" : "../grafx/supersized/play.gif";
                        if (src == "../grafx/supersized/pause.gif") {
                            $(this).find('img').attr("src", "../grafx/supersized/play.gif");
                            $.paused = false;
                            slideshow_interval = setInterval(nextslide, options.slide_interval);
                        } else {
                            $(this).find('img').attr("src", "../grafx/supersized/pause.gif");
                            clearInterval(slideshow_interval);
                            $.paused = true;
                        }
                        $(this).find('img').attr("src", src);
                        return false;
                    });
                    $('#pauseplay').mouseover(function () {
                        var imagecheck = ($(this).find('img').attr("src") === "../grafx/supersized/play_dull.gif");
                        if (imagecheck) {
                            $(this).find('img').attr("src", "../grafx/supersized/play.gif");
                        } else {
                            $(this).find('img').attr("src", "../grafx/supersized/pause.gif");
                        }
                    });

                    $('#pauseplay').mouseout(function () {
                        var imagecheck = ($(this).find('img').attr("src") === "../grafx/supersized/play.gif");
                        if (imagecheck) {
                            $(this).find('img').attr("src", "../grafx/supersized/play_dull.gif");
                        } else {
                            $(this).find('img').attr("src", "../grafx/supersized/pause_dull.gif");
                        }
                        return false;
                    });
                }
            }
        });

        $(document).ready(function () {
            $('#supersize').resizenow();
        });

        //Pause when hover on image
        $('#supersize > *').hover(function () {
            if (options.slideshow == 1 && options.pause_hover == 1) {
                if (!($.paused) && options.navigation == 1) {
                    $('#pauseplay > img').attr("src", "../grafx/supersized/pause.gif");
                    clearInterval(slideshow_interval);
                }
            }
            original_title = $(this).find('img').attr("title");
            if ($.inAnimation) return false; else $(this).find('img').attr("title", "");
        }, function () {
            if (options.slideshow == 1 && options.pause_hover == 1) {
                if (!($.paused) && options.navigation == 1) {
                    $('#pauseplay > img').attr("src", "../grafx/supersized/pause_dull.gif");
                    slideshow_interval = setInterval(nextslide, options.slide_interval);
                }
            }
            $(this).find('img').attr("title", original_title);
        });

        $(window).bind("resize", function () {
            $('#supersize').resizenow();
        });

        $('#supersize').hide();
        $('#content').hide();
    };

    //Adjust image size
    $.fn.resizenow = function () {
        var options = $.extend($.fn.supersized.defaults, $.fn.supersized.options);
        return this.each(function () {

            //Define image ratio
            var ratio = options.startheight / options.startwidth;

            //Gather browser and current image size
            var imagewidth = $(this).width();
            var imageheight = $(this).height();
            var browserwidth = $(window).width();
            var browserheight = $(window).height();
            var offset;

            //Resize image to proper ratio
            if ((browserheight / browserwidth) > ratio) {
                $(this).height(browserheight);
                $(this).width(browserheight / ratio);
                $(this).children().height(browserheight);
                $(this).children().width(browserheight / ratio);
            } else {
                $(this).width(browserwidth);
                $(this).height(browserwidth * ratio);
                $(this).children().width(browserwidth);
                $(this).children().height(browserwidth * ratio);
            }
            if (options.vertical_center == 1) {
                $(this).children().css('left', (browserwidth - $(this).width()) / 2);
                $(this).children().css('top', (browserheight - $(this).height()) / 2);
            }
            return false;
        });
    };

    $.fn.supersized.defaults = {
        startwidth: 4,
        startheight: 3,
        vertical_center: 1,
        slideshow: 1,
        navigation: 1,
        transition: 1, //0-None, 1-Fade, 2-slide top, 3-slide right, 4-slide bottom, 5-slide left
        pause_hover: 0,
        slide_counter: 1,
        slide_captions: 1,
        slide_interval: 5000
    };

})(jQuery);

//Slideshow Next Slide
function nextslide() {
    if ($.inAnimation) return false;
    else $.inAnimation = true;
    var options = $.extend($.fn.supersized.defaults, $.fn.supersized.options);
    var currentslide = $('#supersize .activeslide');
    currentslide.removeClass('activeslide');

    if (currentslide.length == 0) currentslide = $('#supersize a:last');

    var nextslide = currentslide.next().length ? currentslide.next() : $('#supersize a:first');
    var prevslide = nextslide.prev().length ? nextslide.prev() : $('#supersize a:last');


    //Display slide counter
    if (options.slide_counter == 1) {
        var slidecount = $('#slidecounter .slidenumber').html();
        currentslide.next().length ? slidecount++ : slidecount = 1;
        $('#slidecounter .slidenumber').html(slidecount);
    }

    $('.prevslide').removeClass('prevslide');
    prevslide.addClass('prevslide');

    //Captions require img in <a>
    if (options.slide_captions == 1) $('#slidecaption').html($(nextslide).find('img').attr('title'));

    nextslide.hide().addClass('activeslide')
    if (options.transition == 0) {
        nextslide.show(); $.inAnimation = false;
    }
    if (options.transition == 1) {
        nextslide.fadeIn(750, function () { $.inAnimation = false; });
    }
    if (options.transition == 2) {
        nextslide.show("slide", { direction: "up" }, 'slow', function () { $.inAnimation = false; });
    }
    if (options.transition == 3) {
        nextslide.show("slide", { direction: "right" }, 'slow', function () { $.inAnimation = false; });
    }
    if (options.transition == 4) {
        nextslide.show("slide", { direction: "down" }, 'slow', function () { $.inAnimation = false; });
    }
    if (options.transition == 5) {
        nextslide.show("slide", { direction: "left" }, 'slow', function () { $.inAnimation = false; });
    }

    $('#supersize').resizenow(); //Fix for resize mid-transition

}

//Slideshow Previous Slide
function prevslide() {
    if ($.inAnimation) return false;
    else $.inAnimation = true;
    var options = $.extend($.fn.supersized.defaults, $.fn.supersized.options);
    var currentslide = $('#supersize .activeslide');
    currentslide.removeClass('activeslide');

    if (currentslide.length == 0) currentslide = $('#supersize a:first');

    var nextslide = currentslide.prev().length ? currentslide.prev() : $('#supersize a:last');
    var prevslide = nextslide.next().length ? nextslide.next() : $('#supersize a:first');

    //Display slide counter
    if (options.slide_counter == 1) {
        var slidecount = $('#slidecounter .slidenumber').html();
        currentslide.prev().length ? slidecount-- : slidecount = $("#supersize > *").size();
        $('#slidecounter .slidenumber').html(slidecount);
    }

    $('.prevslide').removeClass('prevslide');
    prevslide.addClass('prevslide');

    //Captions require img in <a>
    if (options.slide_captions == 1) $('#slidecaption').html($(nextslide).find('img').attr('title'));

    nextslide.hide().addClass('activeslide')
    if (options.transition == 0) {
        nextslide.show(); $.inAnimation = false;
    }
    if (options.transition == 1) {
        nextslide.fadeIn(750, function () { $.inAnimation = false; });
    }
    if (options.transition == 2) {
        nextslide.show("slide", { direction: "down" }, 'slow', function () { $.inAnimation = false; });
    }
    if (options.transition == 3) {
        nextslide.show("slide", { direction: "left" }, 'slow', function () { $.inAnimation = false; });
    }
    if (options.transition == 4) {
        nextslide.show("slide", { direction: "up" }, 'slow', function () { $.inAnimation = false; });
    }
    if (options.transition == 5) {
        nextslide.show("slide", { direction: "right" }, 'slow', function () { $.inAnimation = false; });
    }

    $('#supersize').resizenow(); //Fix for resize mid-transition
}