/**
 * jQuery lightBox plugin
 * This jQuery plugin was inspired and based on Lightbox 2 by Lokesh Dhakar (http://www.huddletogether.com/projects/lightbox2/)
 * and adapted to me for use like a plugin from jQuery.
 * @name jquery-lightbox-0.5.js
 * @author Leandro Vieira Pinho - http://leandrovieira.com
 * @version 0.5
 * @date April 11, 2008
 * @category jQuery plugin
 * @copyright (c) 2008 Leandro Vieira Pinho (leandrovieira.com)
 * @license CCAttribution-ShareAlike 2.5 Brazil - http://creativecommons.org/licenses/by-sa/2.5/br/deed.en_US
 * @example Visit http://leandrovieira.com/projects/jquery/lightbox/ for more informations about this jQuery plugin
 */
(

function ($) {
    $.fn.lightBox = function (settings) {
        settings = jQuery.extend({
            overlayBgColor: '#000',
            overlayOpacity: 0.8,
            fixedNavigation: false,
            imageLoading: '../images/lightbox-ico-loading.gif',
            imageBtnPrev: '../images/lightbox-btn-prev.gif',
            imageBtnNext: 'UIObjects/images/lightbox-btn-next.gif',
            imageBtnClose: 'UIObjects/images/lightbox-btn-close.gif',
            imageBlank: 'UIObjects/images/lightbox-blank.gif',
            containerBorderSize: 10,
            containerResizeSpeed: 400,
            txtImage: 'Image',
            txtOf: 'of',
            keyToClose: 'c',
            keyToPrev: 'p',
            keyToNext: 'n',
            imageArray: [],
            activeImage: 0
        }, settings);

        
var jQueryMatchedObj = this; 

function _initialize() { _start(this, jQueryMatchedObj); return false; }

function _start(objClicked, jQueryMatchedObj) {
    $('embed, object, select').css({ 'visibility': 'hidden' });
    _set_interface();
    settings.imageArray.length = 0;
    settings.activeImage = 0;

    if (jQueryMatchedObj.length == 1) {
        settings.imageArray.push(
            new Array(objClicked.getAttribute('href'),
            objClicked.getAttribute('title')));
    }
    else {
        for (var i = 0; i < jQueryMatchedObj.length; i++) {
            settings.imageArray.push(
            new Array(jQueryMatchedObj[i].getAttribute('href'),
            jQueryMatchedObj[i].getAttribute('title')));
        }
}

while(settings.imageArray[settings.activeImage][0]!=objClicked.getAttribute('href')){settings.activeImage++;}
_set_image_to_view();}

function _set_interface() {
    // Contains Images Button in html string, using bottom solution and including images in the css file to keep global images reference compatibility
    //$('body').append('<div id="jquery-overlay"></div><div id="jquery-lightbox"><div id="lightbox-container-image-box"><div id="lightbox-container-image"><img id="lightbox-image"><div style="" id="lightbox-nav"><a href="#" id="lightbox-nav-btnPrev"></a><a href="#" id="lightbox-nav-btnNext"></a></div><div id="lightbox-loading"><a href="#" id="lightbox-loading-link"><img src="' + settings.imageLoading + '"></a></div></div></div><div id="lightbox-container-image-data-box"><div id="lightbox-container-image-data"><div id="lightbox-image-details"><span id="lightbox-image-details-caption"></span><span id="lightbox-image-details-currentNumber"></span></div><div id="lightbox-secNav"><a href="#" id="lightbox-secNav-btnClose"><img src="' + settings.imageBtnClose + '"></a></div></div></div></div>');
    $('body').append('<div id="jquery-overlay"></div><div id="jquery-lightbox"><div id="lightbox-container-image-box"><div id="lightbox-container-image"><img id="lightbox-image"><div style="" id="lightbox-nav"><a href="#" id="lightbox-nav-btnPrev"></a><a href="#" id="lightbox-nav-btnNext"></a></div><div id="lightbox-loading"><a href="#" id="lightbox-loading-link"></a></div></div></div><div id="lightbox-container-image-data-box"><div id="lightbox-container-image-data"><div id="lightbox-image-details"><span id="lightbox-image-details-caption"></span><span id="lightbox-image-details-currentNumber"></span></div><div id="lightbox-secNav"><a href="#" id="lightbox-secNav-btnClose"></a></div></div></div></div>');
    var arrPageSizes = ___getPageSize();
    $('#jquery-overlay').css({
        backgroundColor: settings.overlayBgColor,
        opacity: settings.overlayOpacity,
        width: arrPageSizes[0],
        height: arrPageSizes[1]
    }).fadeIn();
    var arrPageScroll = ___getPageScroll();
    $('#jquery-lightbox').css({ top: arrPageScroll[1] + (arrPageSizes[3] / 10),
        left: arrPageScroll[0]
    }).show();

    $('#jquery-overlay,#jquery-lightbox').click(function () {
        _finish();
    });

    $('#lightbox-loading-link,#lightbox-secNav-btnClose').click(function () {
        _finish(); return false;
    });

    $(window).resize(function () {
        var arrPageSizes = ___getPageSize();

        $('#jquery-overlay').css({ width: arrPageSizes[0], height: arrPageSizes[1] });
        var arrPageScroll = ___getPageScroll(); $('#jquery-lightbox').css({ top: arrPageScroll[1] + (arrPageSizes[3] / 10), left: arrPageScroll[0] });
    });
}

function _set_image_to_view() {
    $('#lightbox-loading').show();
    if (settings.fixedNavigation) {
        $('#lightbox-image,#lightbox-container-image-data-box,#lightbox-image-details-currentNumber').hide();
    }
    else {
        $('#lightbox-image,#lightbox-nav,#lightbox-nav-btnPrev,#lightbox-nav-btnNext,#lightbox-container-image-data-box,#lightbox-image-details-currentNumber').hide();
    }
    var objImagePreloader = new Image();
    objImagePreloader.onload = function () {
        $('#lightbox-image').attr('src', settings.imageArray[settings.activeImage][0]);
        _resize_container_image_box(objImagePreloader.width, objImagePreloader.height);
        objImagePreloader.onload = function () { };
    };
    objImagePreloader.src = settings.imageArray[settings.activeImage][0];
};

function _resize_container_image_box(intImageWidth, intImageHeight) {
    var intCurrentWidth = $('#lightbox-container-image-box').width();
    var intCurrentHeight = $('#lightbox-container-image-box').height();
    var intWidth = (intImageWidth + (settings.containerBorderSize * 2));
    var intHeight = (intImageHeight + (settings.containerBorderSize * 2));
    var intDiffW = intCurrentWidth - intWidth;
    var intDiffH = intCurrentHeight - intHeight;

    $('#lightbox-container-image-box').animate({
        width: intWidth, height: intHeight
    },
    settings.containerResizeSpeed, function () {
        _show_image();
    });

    if ((intDiffW == 0) && (intDiffH == 0)) {
        if ($.browser.msie) {
            ___pause(250);
        }
        else {
            ___pause(100);
        }
    }
    $('#lightbox-container-image-data-box').css({ width: intImageWidth });
    $('#lightbox-nav-btnPrev,#lightbox-nav-btnNext').css({ height: intImageHeight + (settings.containerBorderSize * 2) });
};

function _show_image() {
    $('#lightbox-loading').hide();
    $('#lightbox-image').fadeIn(function () {
        _show_image_data();
        _set_navigation();
    });

    _preload_neighbor_images();
};

function _show_image_data() {
    $('#lightbox-container-image-data-box').slideDown('fast');
    $('#lightbox-image-details-caption').hide();

    if (settings.imageArray[settings.activeImage][1]) {
        $('#lightbox-image-details-caption').html(settings.imageArray[settings.activeImage][1]).show();
    }

    if (settings.imageArray.length > 1) {
        $('#lightbox-image-details-currentNumber').html(settings.txtImage + ' ' + (settings.activeImage + 1) + ' ' + settings.txtOf + ' ' + settings.imageArray.length).show();
    }
}

function _set_navigation() {
    $('#lightbox-nav').show();
    $('#lightbox-nav-btnPrev,#lightbox-nav-btnNext').css({ 'display': 'none' })
    //.css({ 'background': 'transparent url(' + settings.imageBlank + ') no-repeat' });

    if (settings.activeImage != 0) {
        if (settings.fixedNavigation) {
            $('#lightbox-nav-btnPrev').css({ 'display': 'block' })
            //.css({ 'background': 'url(' + settings.imageBtnPrev + ') left 15% no-repeat' }) removing hardcoded button path
            .unbind()
            .bind('click', function () {
                settings.activeImage = settings.activeImage - 1;
                _set_image_to_view();
                return false;
            });
        }
        else {
            $('#lightbox-nav-btnPrev').unbind().hover(function () {
                $(this).css({ 'display': 'block' });
            }, function () {
                //$(this).css({ 'display': 'none' });
            })
//            $('#lightbox-nav-btnPrev').unbind().hover(function () {
//                $(this).css({ 'background': 'url(' + settings.imageBtnPrev + ') left 15% no-repeat' });
//            }, function () {
//                $(this).css({ 'background': 'transparent url(' + settings.imageBlank + ') no-repeat' });
//            })
            .show()
            .bind('click', function () {
                settings.activeImage = settings.activeImage - 1;
                _set_image_to_view();
                return false;
            });
        }
    }

    if (settings.activeImage != (settings.imageArray.length - 1)) {
        if (settings.fixedNavigation) {
            $('#lightbox-nav-btnNext').css({ 'display': 'block' })
            //.css({ 'background': 'url(' + settings.imageBtnNext + ') right 15% no-repeat' })
            .unbind()
            .bind('click', function () {
                settings.activeImage = settings.activeImage + 1;
                _set_image_to_view();
            return false;
        });
    }
    else {
        $('#lightbox-nav-btnNext')
        .unbind()
        .hover(function () {
            $(this).css({ 'display': 'block' })
            //.css({ 'background': 'url(' + settings.imageBtnNext + ') right 15% no-repeat' });
        }, function () {
            //$(this).css({ 'display': 'none' })
            //.css({ 'background': 'transparent url(' + settings.imageBlank + ') no-repeat' });
        })
            .show()
            .bind('click', function () {
                settings.activeImage = settings.activeImage + 1;
                _set_image_to_view();
                return false;
            });
        }
    }

    _enable_keyboard_navigation();
}

function _enable_keyboard_navigation() {
    $(document).keydown(function (objEvent) {
        _keyboard_action(objEvent);
    });
}

function _disable_keyboard_navigation() {
    $(document).unbind();
}

function _keyboard_action(objEvent) {
    if (objEvent == null) {
        keycode = event.keyCode;
        escapeKey = 27;
    }
    else {
        keycode = objEvent.keyCode;
        escapeKey = objEvent.DOM_VK_ESCAPE;
    }

    key = String.fromCharCode(keycode).toLowerCase();

    if ((key == settings.keyToClose) || (key == 'x') || (keycode == escapeKey)) {
        _finish();
    }

    if ((key == settings.keyToPrev) || (keycode == 37)) {
        if (settings.activeImage != 0) {
            settings.activeImage = settings.activeImage - 1;
            _set_image_to_view();
            _disable_keyboard_navigation();
        }
    }
    if ((key == settings.keyToNext) || (keycode == 39)) {
        if (settings.activeImage != (settings.imageArray.length - 1)) {
            settings.activeImage = settings.activeImage + 1;
            _set_image_to_view();
            _disable_keyboard_navigation();
        }
    }
}

//Performance enhancement by pre-loading the PREV & NEXT images in array
function _preload_neighbor_images() {
    if ((settings.imageArray.length - 1) > settings.activeImage) {
        objNext = new Image();
        objNext.src = settings.imageArray[settings.activeImage + 1][0];
    }
    if (settings.activeImage > 0) {
        objPrev = new Image();
        objPrev.src = settings.imageArray[settings.activeImage - 1][0];
    }
}

function _finish() {
    $('#jquery-lightbox').remove();
    $('#jquery-overlay').fadeOut(function () {
        $('#jquery-overlay').remove();
    });
    $('embed, object, select').css({ 'visibility': 'visible' });
}

function ___getPageSize() {
    var xScroll, yScroll;
    if (window.innerHeight && window.scrollMaxY) {
        xScroll = window.innerWidth + window.scrollMaxX;
        yScroll = window.innerHeight + window.scrollMaxY;
    }
    else if (document.body.scrollHeight > document.body.offsetHeight) {
        xScroll = document.body.scrollWidth;
        yScroll = document.body.scrollHeight;
    }
    else {
        xScroll = document.body.offsetWidth;
        yScroll = document.body.offsetHeight;
    }

    var windowWidth, windowHeight;

    if (self.innerHeight) {
        if (document.documentElement.clientWidth) {
            windowWidth = document.documentElement.clientWidth;
        }
         else {
            windowWidth = self.innerWidth;
        }

        windowHeight = self.innerHeight;
    }
    else if (document.documentElement && document.documentElement.clientHeight) {
        windowWidth = document.documentElement.clientWidth;
        windowHeight = document.documentElement.clientHeight;
    }
    else if (document.body) {
        windowWidth = document.body.clientWidth;
        windowHeight = document.body.clientHeight;
    }
    if (yScroll < windowHeight) {
        pageHeight = windowHeight;
    }
    else { pageHeight = yScroll; }

    if (xScroll < windowWidth) {
        pageWidth = xScroll;
    }
    else {
        pageWidth = windowWidth;
    }

    arrayPageSize = new Array(pageWidth, pageHeight, windowWidth, windowHeight);
    return arrayPageSize;
};

function ___getPageScroll() {
    var xScroll, yScroll;
    if (self.pageYOffset) {
        yScroll = self.pageYOffset;
        xScroll = self.pageXOffset;
    }
    else if (document.documentElement && document.documentElement.scrollTop) {
        yScroll = document.documentElement.scrollTop;
        xScroll = document.documentElement.scrollLeft;
    }
    else if (document.body) {
        yScroll = document.body.scrollTop;
        xScroll = document.body.scrollLeft;
    }

    arrayPageScroll = new Array(xScroll, yScroll);
    return arrayPageScroll;
};

function ___pause(ms) {
    var date = new Date();
    curDate = null;
    do {
        var curDate = new Date();
    }

    while (curDate - date < ms);
}; 

return this.unbind('click').click(_initialize);
};

})
(jQuery);