/*
 * FancyBox - jQuery Plugin
 * simple and fancy lightbox alternative
 *
 * Copyright (c) 2009 Janis Skarnelis
 * Examples and documentation at: http://fancybox.net
 * 
 * Version: 1.2.6 (16/11/2009)
 * Requires: jQuery v1.3+
 * 
 * Dual licensed under the MIT and GPL licenses:
 *   http://www.opensource.org/licenses/mit-license.php
 *   http://www.gnu.org/licenses/gpl.html
 */

;(function($) {
    $.fn.fixPNG = function() {
        return this.each(function() {
            var image = $(this).css('backgroundImage');

            if (image.match(/^url\(["']?(.*\.png)["']?\)$/i)) {
                image = RegExp.$1;
                $(this).css({
                    'backgroundImage': 'none',
                    'filter': "progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled=true, sizingMethod=" + ($(this).css('backgroundRepeat') == 'no-repeat' ? 'crop' : 'scale') + ", src='" + image + "')"
                }).each(function() {
                    var position = $(this).css('position');
                    if (position != 'absolute' && position != 'relative')
                        $(this).css('position', 'relative');
                });
            }
        });
    };

    var elem, opts, busy = false, imagePreloader = new Image, loadingTimer, loadingFrame = 1, imageRegExp = /\.(jpg|gif|png|bmp|jpeg)(.*)?$/i;
    var ieQuirks = null, IE6 = $.browser.msie && $.browser.version.substr(0, 1) == 6 && !window.XMLHttpRequest, oldIE = IE6 || ($.browser.msie && $.browser.version.substr(0, 1) == 7);

    $.fn.fancybox = function(o, show) {
        var settings = $.extend({}, $.fn.fancybox.defaults, o);
        var matchedGroup = this;

        if (settings.itemArray.length > 0) {
            $.fn.fancybox.Items = settings.itemArray;

        } else {
            var item = {};

            var subGroup = $(matchedGroup);
            for (var i = 0; i < subGroup.length; i++) {
                var href = $(subGroup[i]).attr("org");
                if (href == "" || typeof href == "undefined")
                    href = $(subGroup[i]).attr("src");
                item = { href: href.replace(/#.*/, ''), title: subGroup[i].title };
                if (!_existed($.fn.fancybox.Items, item))
                    $.fn.fancybox.Items.push(item);
            }
        }

        function _existed(array, item) {
            for (var i = 0; i < array.length; i++) {
                if (array[i].href == item.href)
                    return true;
            }
            return false;
        }

        function _initialize() {
            elem = this;
            opts = $.extend({}, settings);

            _start();

            return false;
        };

        function _start() {           
            if (busy) return;

            if ($.isFunction(opts.callbackOnStart)) {
                opts.callbackOnStart();
            }

            $.fn.fancybox.CurrentItemIndex = 0;

            var href = $(elem).attr("org");
            if (href == "" || typeof href == "undefined")
                href = $(elem).attr("src");
            while ($.fn.fancybox.Items[$.fn.fancybox.CurrentItemIndex].href != href.replace(/#.*/, '')) {
                $.fn.fancybox.CurrentItemIndex++;
            }

            if (opts.overlayShow) {
                if (IE6) {
                    $('embed, object, select').css('visibility', 'hidden');
                    $("#fancy_overlay").css('height', $(document).height());
                }

                $("#fancy_overlay").css({
                    'background-color': opts.overlayColor,
                    'opacity': opts.overlayOpacity
                }).show();
            }

            $(window).bind("resize.fb scroll.fb", $.fn.fancybox.scrollBox);

            _change_item();
        };

        function _change_item(index) {

            $("#fancy_right, #fancy_left, #fancy_close, #fancy_title").hide();
            if (typeof index == "undefined") {
                index = $.fn.fancybox.CurrentItemIndex;
            }
            var href = $.fn.fancybox.Items[index].href.replace(/#.*/, '');
            if (href.match("iframe") || elem.className.indexOf("iframe") >= 0) {
                $.fn.fancybox.showLoading();
                _set_content('<iframe id="fancy_frame" onload="jQuery.fn.fancybox.showIframe()" name="fancy_iframe' + Math.round(Math.random() * 1000) + '" frameborder="0" hspace="0" src="' + href + '"></iframe>', opts.frameWidth, opts.frameHeight);

            } else if (href.match(/#/)) {
                var target = window.location.href.split('#')[0]; target = href.replace(target, ''); target = target.substr(target.indexOf('#'));

                _set_content('<div id="fancy_div">' + $(target).html() + '</div>', opts.frameWidth, opts.frameHeight);

            } else if (href.match(imageRegExp)) {
                _load_image(href);
            } else {
                $.fn.fancybox.showLoading();
                $.get(href, function(data) {
                    $("#fancy_loading").hide();
                    _set_content('<div id="fancy_ajax">' + data + '</div>', opts.frameWidth, opts.frameHeight);
                });
            }
        };

        function _load_image(href) {
            imagePreloader = new Image;
            //大图片不存在则使用中图片
            try {
                $(imagePreloader).unbind('error').bind('error', function() {
                imagePreloader.src = "/upload/defaultimages/default.jpg.430x320.jpg";
                });
            } catch (e) { }
            imagePreloader.src = href;
            if (imagePreloader.complete) {
                _proceed_image();

            } else {
                $.fn.fancybox.showLoading();
                $(imagePreloader).unbind('load').bind('load', function() {
                    $("#fancy_loading").hide();
                    _proceed_image();
                });
            }
        };

        function _proceed_image() {
            var width = imagePreloader.width;
            var height = imagePreloader.height;
            //ff下不支持Image的onerror事件，跳过高宽判断是否使用中图片
            if (height == 0 || width == 0) {
                var img = new Image;
                img.src = imagePreloader.src.replace('/org/', '/');
                height = img.height;
                width = img.width;
                _load_image(img.src);
            }

            var horizontal_space = (opts.padding * 2) + 40;
            var vertical_space = (opts.padding * 2) + 60;

            var w = $.fn.fancybox.getViewport();

            if (opts.imageScale && (width > (w[0] - horizontal_space) || height > (w[1] - vertical_space))) {
                var ratio = Math.min(Math.min(w[0] - horizontal_space, width) / width, Math.min(w[1] - vertical_space, height) / height);

                width = Math.round(ratio * width);
                height = Math.round(ratio * height);
            }

            _set_content('<img alt="" id="fancy_img" src="' + imagePreloader.src + '" />', width, height);
        };

        function _preload_neighbor_images() {
            if (($.fn.fancybox.Items.length - 1) > $.fn.fancybox.CurrentItemIndex) {
                var href = $.fn.fancybox.Items[$.fn.fancybox.CurrentItemIndex + 1].href || false;

                if (href && href.match(imageRegExp)) {
                    objNext = new Image();
                    objNext.src = href;
                }
            }

            if ($.fn.fancybox.CurrentItemIndex > 0) {
                var href = $.fn.fancybox.Items[$.fn.fancybox.CurrentItemIndex - 1].href || false;

                if (href && href.match(imageRegExp)) {
                    objNext = new Image();
                    objNext.src = href;
                }
            }
        };

        function _set_content(value, width, height) {
            busy = true;

            var pad = opts.padding;

            if (oldIE || ieQuirks) {
                try {
                    $("#fancy_content")[0].style.removeExpression("height");
                    $("#fancy_content")[0].style.removeExpression("width");
                } catch (e) { }
            }

            if (pad > 0) {
                width += pad * 2;
                height += pad * 2;

                $("#fancy_content").css({
                    'top': pad + 'px',
                    'right': pad + 'px',
                    'bottom': pad + 'px',
                    'left': pad + 'px',
                    //'z-index': '100',
                    'width': 'auto',
                    'height': 'auto'
                });

                if (oldIE || ieQuirks) {
                try {
                    $("#fancy_content")[0].style.setExpression('height', '(this.parentNode.clientHeight - ' + pad * 2 + ')');
                    $("#fancy_content")[0].style.setExpression('width', '(this.parentNode.clientWidth - ' + pad * 2 + ')');
                } catch (e) { }
                }
            } else {
                $("#fancy_content").css({
                    'top': 0,
                    'right': 0,
                    'bottom': 0,
                    'left': 0,
                    'width': '100%',
                    'height': '100%'
                });
            }

            if ($("#fancy_outer").is(":visible") && width == $("#fancy_outer").width() && height == $("#fancy_outer").height()) {
                $("#fancy_content").fadeOut('fast', function() {
                    $("#fancy_content").empty().append($(value)).fadeIn("normal", function() {
                        _finish();
                    });
                });

                return;
            }

            var w = $.fn.fancybox.getViewport();

            var itemTop = (height + 60) > w[1] ? w[3] : (w[3] + Math.round((w[1] - height - 60) * 0.5));
            var itemLeft = (width + 40) > w[0] ? w[2] : (w[2] + Math.round((w[0] - width - 40) * 0.5));

            var itemOpts = {
                'left': itemLeft,
                'top': itemTop,
                'width': width + 'px',
                'height': height + 'px'
            };

            if ($("#fancy_outer").is(":visible")) {
                $("#fancy_content").fadeOut("normal", function() {
                    $("#fancy_content").empty();
                    $("#fancy_outer").animate(itemOpts, opts.zoomSpeedChange, opts.easingChange, function() {
                        $("#fancy_content").append($(value)).fadeIn("normal", function() {
                            _finish();
                        });
                    });
                });

            } else {

                if (opts.zoomSpeedIn > 0 && $.fn.fancybox.Items[$.fn.fancybox.CurrentItemIndex].orig !== undefined) {
                    $("#fancy_content").empty().append($(value));

                    var orig_item = $.fn.fancybox.Items[$.fn.fancybox.CurrentItemIndex].orig;
                    var orig_pos = $.fn.fancybox.getPosition(orig_item);

                    $("#fancy_outer").css({
                        'left': (orig_pos.left - 20 - opts.padding) + 'px',
                        'top': (orig_pos.top - 20 - opts.padding) + 'px',
                        'width': $(orig_item).width() + (opts.padding * 2),
                        'height': $(orig_item).height() + (opts.padding * 2)
                    });

                    if (opts.zoomOpacity) {
                        itemOpts.opacity = 'show';
                    }

                    $("#fancy_outer").animate(itemOpts, opts.zoomSpeedIn, opts.easingIn, function() {
                        _finish();
                    });

                } else {

                    $("#fancy_content").hide().empty().append($(value)).show();
                    $("#fancy_outer").css(itemOpts).fadeIn("normal", function() {
                        _finish();
                    });
                }
            }
        };

        function _set_navigation() {
            $("#fancy_left").show();
            $("#fancy_right").show();
            if ($.fn.fancybox.CurrentItemIndex !== 0) {
                $("#fancy_left, #fancy_left_ico").unbind().bind("click", function(e) {
                    e.stopPropagation();

                    $.fn.fancybox.CurrentItemIndex--;
                    _change_item();

                    return false;
                });
                //$("#fancy_left").find(".fancy_ico").css('background', "transparent url('/images/fancy_left.png') no-repeat");
            }
            else {
                $("#fancy_left").hide();
                $("#fancy_left, #fancy_left_ico").unbind();
            }

            if ($.fn.fancybox.CurrentItemIndex != ($.fn.fancybox.Items.length - 1)) {
                $("#fancy_right, #fancy_right_ico").unbind().bind("click", function(e) {
                    e.stopPropagation();

                    $.fn.fancybox.CurrentItemIndex++;
                    _change_item();
                    $("#fancy_right, #fancy_right_ico").attr("ItemCurrent", $.fn.fancybox.CurrentItemIndex);
                    return false;
                });
                //$("#fancy_right").find(".fancy_ico").css('background', "transparent url('/images/fancy_right.png') no-repeat");
            }
            else {
                $("#fancy_right").hide();
                $("#fancy_right, #fancy_right_ico").unbind();
            }
        };

        function _finish() {
            if ($.browser.msie) {
                $("#fancy_content")[0].style.removeAttribute('filter');
                $("#fancy_outer")[0].style.removeAttribute('filter');
            }

            _set_navigation();

            _preload_neighbor_images();

            $(document).bind("keydown.fb", function(e) {
                if (e.keyCode == 27 && opts.enableEscapeButton) {
                    $.fn.fancybox.close();

                } else if (e.keyCode == 37 && $.fn.fancybox.CurrentItemIndex !== 0) {
                    $(document).unbind("keydown.fb");
                    $.fn.fancybox.CurrentItemIndex--;
                    _change_item();


                } else if (e.keyCode == 39 && $.fn.fancybox.CurrentItemIndex != ($.fn.fancybox.Items.length - 1)) {
                    $(document).unbind("keydown.fb");
                    $.fn.fancybox.CurrentItemIndex++;
                    _change_item();
                }
            });

            if (opts.hideOnContentClick) {
                $("#fancy_content").click($.fn.fancybox.close);
            }

            if (opts.overlayShow && opts.hideOnOverlayClick) {
                $("#fancy_overlay").bind("click", $.fn.fancybox.close);
            }

            if (opts.showCloseButton) {
                $("#fancy_close").bind("click", $.fn.fancybox.close).show();
            }

            if (typeof $.fn.fancybox.Items[$.fn.fancybox.CurrentItemIndex].title !== 'undefined' && $.fn.fancybox.Items[$.fn.fancybox.CurrentItemIndex].title.length > 0) {
                var pos = $("#fancy_outer").position();

                $('#fancy_title div').text($.fn.fancybox.Items[$.fn.fancybox.CurrentItemIndex].title).html();

                $('#fancy_title').css({
                    'top': pos.top + $("#fancy_outer").outerHeight() - 32,
                    'left': pos.left + (($("#fancy_outer").outerWidth() * 0.5) - ($('#fancy_title').width() * 0.5))
                }).show();
            }

            if (opts.overlayShow && IE6) {
                $('embed, object, select', $('#fancy_content')).css('visibility', 'visible');
            }

            if ($.isFunction(opts.callbackOnShow)) {
                opts.callbackOnShow($.fn.fancybox.Items[$.fn.fancybox.CurrentItemIndex]);
            }

            if ($.browser.msie) {
                $("#fancy_outer")[0].style.removeAttribute('filter');
                $("#fancy_content")[0].style.removeAttribute('filter');
            }

            busy = false;
        };
        if (show)
            return this.unbind('click.fb').bind('click.fb', _initialize);
    };

    $.fn.fancybox.scrollBox = function() {
        var w = $.fn.fancybox.getViewport();

        if (opts.centerOnScroll && $("#fancy_outer").is(':visible')) {
            var ow = $("#fancy_outer").outerWidth();
            var oh = $("#fancy_outer").outerHeight();

            var pos = {
                'top': (oh > w[1] ? w[3] : w[3] + Math.round((w[1] - oh) * 0.5)),
                'left': (ow > w[0] ? w[2] : w[2] + Math.round((w[0] - ow) * 0.5))
            };

            $("#fancy_outer").css(pos);

            $('#fancy_title').css({
                'top': pos.top + oh - 32,
                'left': pos.left + ((ow * 0.5) - ($('#fancy_title').width() * 0.5))
            });
        }

        if (IE6 && $("#fancy_overlay").is(':visible')) {
            $("#fancy_overlay").css({
                'height': $(document).height()
            });
        }

        if ($("#fancy_loading").is(':visible')) {
            $("#fancy_loading").css({ 'left': ((w[0] - 40) * 0.5 + w[2]), 'top': ((w[1] - 40) * 0.5 + w[3]) });
        }
    };

    $.fn.fancybox.getNumeric = function(el, prop) {
        return parseInt($.curCSS(el.jquery ? el[0] : el, prop, true)) || 0;
    };

    $.fn.fancybox.getPosition = function(el) {
        var pos = el.offset();

        pos.top += $.fn.fancybox.getNumeric(el, 'paddingTop');
        pos.top += $.fn.fancybox.getNumeric(el, 'borderTopWidth');

        pos.left += $.fn.fancybox.getNumeric(el, 'paddingLeft');
        pos.left += $.fn.fancybox.getNumeric(el, 'borderLeftWidth');

        return pos;
    };

    $.fn.fancybox.showIframe = function() {
        $("#fancy_loading").hide();
        $("#fancy_frame").show();
    };

    $.fn.fancybox.getViewport = function() {
        return [$(window).width(), $(window).height(), $(document).scrollLeft(), $(document).scrollTop()];
    };

    $.fn.fancybox.animateLoading = function() {
        if (!$("#fancy_loading").is(':visible')) {
            clearInterval(loadingTimer);
            return;
        }
    };

    $.fn.fancybox.showLoading = function() {
        clearInterval(loadingTimer);

        var w = $.fn.fancybox.getViewport();

        $("#fancy_loading").css({ 'left': ((w[0] - 40) * 0.5 + w[2]), 'top': ((w[1] - 40) * 0.5 + w[3]) }).show();
        $("#fancy_loading").bind('click', $.fn.fancybox.close);

        loadingTimer = setInterval($.fn.fancybox.animateLoading, 66);
    };

    $.fn.fancybox.close = function() {
        busy = true;

        $(imagePreloader).unbind();

        $(document).unbind("keydown.fb");
        $(window).unbind("resize.fb scroll.fb");

        $("#fancy_overlay, #fancy_content, #fancy_close").unbind();

        $("#fancy_close, #fancy_loading, #fancy_left, #fancy_right, #fancy_title").hide();

        __cleanup = function() {
            if ($("#fancy_overlay").is(':visible')) {
                $("#fancy_overlay").fadeOut("fast");
            }

            $("#fancy_content").empty();

            if (opts.centerOnScroll) {
                $(window).unbind("resize.fb scroll.fb");
            }

            if (IE6) {
                $('embed, object, select').css('visibility', 'visible');
            }

            if ($.isFunction(opts.callbackOnClose)) {
                opts.callbackOnClose();
            }

            busy = false;
        };

        if ($("#fancy_outer").is(":visible") !== false) {
            if (opts.zoomSpeedOut > 0 && $.fn.fancybox.Items[$.fn.fancybox.CurrentItemIndex].orig !== undefined) {
                var orig_item = $.fn.fancybox.Items[$.fn.fancybox.CurrentItemIndex].orig;
                var orig_pos = $.fn.fancybox.getPosition(orig_item);

                var itemOpts = {
                    'left': (orig_pos.left - 20 - opts.padding) + 'px',
                    'top': (orig_pos.top - 20 - opts.padding) + 'px',
                    'width': $(orig_item).width() + (opts.padding * 2),
                    'height': $(orig_item).height() + (opts.padding * 2)
                };

                if (opts.zoomOpacity) {
                    itemOpts.opacity = 'hide';
                }

                $("#fancy_outer").stop(false, true).animate(itemOpts, opts.zoomSpeedOut, opts.easingOut, __cleanup);

            } else {
                $("#fancy_outer").stop(false, true).fadeOut('fast', __cleanup);
            }

        } else {
            __cleanup();
        }

        return false;
    };

    $.fn.fancybox.build = function() {
        var html = '';
        html += '<div class="adddiv">';
        html += '<div id="fancy_overlay"></div>';
        html += '<div id="fancy_loading"></div>';

        html += '<div id="fancy_outer">';
        html += '<div id="fancy_inner">';

        html += '<div id="fancy_close"></div>';

        html += '<div id="fancy_bg"><div class="fancy_bg" id="fancy_bg_n"></div><div class="fancy_bg" id="fancy_bg_ne"></div><div class="fancy_bg" id="fancy_bg_e"></div><div class="fancy_bg" id="fancy_bg_se"></div><div class="fancy_bg" id="fancy_bg_s"></div><div class="fancy_bg" id="fancy_bg_sw"></div><div class="fancy_bg" id="fancy_bg_w"></div><div class="fancy_bg" id="fancy_bg_nw"></div></div>';

        html += '<a href="javascript:;" id="fancy_left"><span class="fancy_ico" id="fancy_left_ico"></span></a><a href="javascript:;" id="fancy_right"><span class="fancy_ico" id="fancy_right_ico"></span></a>';

        html += '<div id="fancy_content"></div>';

        html += '</div>';
        html += '</div>';

        html += '<div id="fancy_title"></div>';
        html += '</div>';

        $(html).appendTo("body");

        $('<table cellspacing="0" cellpadding="0" border="0"><tr><td class="fancy_title" id="fancy_title_left"></td><td class="fancy_title" id="fancy_title_main"><div></div></td><td class="fancy_title" id="fancy_title_right"></td></tr></table>').appendTo('#fancy_title');

        if ($.browser.msie) {
            $(".fancy_bg").fixPNG();
        }

        if (IE6) {
            $("div#fancy_overlay").css("position", "absolute");
            $("#fancy_close, .fancy_title, .fancy_ico").fixPNG();

            $("#fancy_inner").prepend('<iframe id="fancy_bigIframe" src="javascript:false;" scrolling="no" frameborder="0"></iframe>');

            // Get rid of the 'false' text introduced by the URL of the iframe
            var frameDoc = $('#fancy_bigIframe')[0].contentWindow.document;
            frameDoc.open();
            frameDoc.close();

        }
    };

    $.fn.fancybox.Items = [];
    $.fn.fancybox.CurrentItemIndex = 0;

    $.fn.fancybox.defaults = {
        padding: 10,
        imageScale: true,
        zoomOpacity: true,
        zoomSpeedIn: 0,
        zoomSpeedOut: 0,
        zoomSpeedChange: 300,
        easingIn: 'swing',
        easingOut: 'swing',
        easingChange: 'swing',
        frameWidth: 560,
        frameHeight: 340,
        overlayShow: true,
        overlayOpacity: 0.3,
        overlayColor: '#666',
        enableEscapeButton: true,
        showCloseButton: true,
        hideOnOverlayClick: true,
        hideOnContentClick: true,
        centerOnScroll: true,
        itemArray: [],
        callbackOnStart: null,
        callbackOnShow: null,
        callbackOnClose: null
    };

    $(document).ready(function() {
        ieQuirks = $.browser.msie && !$.boxModel;

        if ($("#fancy_outer").length < 1) {
            $.fn.fancybox.build();
        }
    });

})(jQuery);