/*
 * jQuery UI Tabs 1.7.2
 *
 * Copyright (c) 2009 AUTHORS.txt (http://jqueryui.com/about)
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 * http://docs.jquery.com/UI/Tabs
 *
 * Depends:
 *    ui.core.js
 */
(function($) {
$.widget("ui.tabs", {
    _init: function() {
        if (this.options.deselectable !== undefined) {
            this.options.collapsible = this.options.deselectable;
        }
        this._tabify(true);
    },
    _setData: function(key, value) {
        if (key == 'selected') {
            if (this.options.collapsible && value == this.options.selected) {
                return;
            }
            this.select(value);
        }
        else {
            this.options[key] = value;
            if (key == 'deselectable') {
                this.options.collapsible = value;
            }
            this._tabify();
        }
    },
    _tabId: function(a) {
        return a.title && a.title.replace(/\s/g, '_').replace(/[^A-Za-z0-9\-_:\.]/g, '') ||
            this.options.idPrefix + $.data(a);
    },
    _sanitizeSelector: function(hash) {
        return hash.replace(/:/g, '\\:'); // we need this because an id may contain a ":"
    },
    _cookie: function() {
        var cookie = this.cookie || (this.cookie = this.options.cookie.name || 'ui-tabs-' + $.data(this.list[0]));
        return $.cookie.apply(null, [cookie].concat($.makeArray(arguments)));
    },
    _ui: function(tab, panel) {
        return {
            tab: tab,
            panel: panel,
            index: this.anchors.index(tab)
        };
    },
    _cleanup: function() {
        // restore all former loading tabs labels
        this.lis.filter('.ui-state-processing').removeClass('ui-state-processing')
                .find('span:data(label.tabs)')
                .each(function() {
                    var el = $(this);
                    el.html(el.data('label.tabs')).removeData('label.tabs');
                });
    },
    _tabify: function(init) {
        this.list = this.element.children('ul:first');
        this.lis = $('li:has(a[href])', this.list);
        this.anchors = this.lis.map(function() { return $('a', this)[0]; });
        this.panels = $([]);
        var self = this, o = this.options;
        var fragmentId = /^#.+/; // Safari 2 reports '#' for an empty hash
        this.anchors.each(function(i, a) {
            var href = $(a).attr('href');
            // For dynamically created HTML that contains a hash as href IE < 8 expands
            // such href to the full page url with hash and then misinterprets tab as ajax.
            // Same consideration applies for an added tab with a fragment identifier
            // since a[href=#fragment-identifier] does unexpectedly not match.
            // Thus normalize href attribute...
            var hrefBase = href.split('#')[0], baseEl;
            if (hrefBase && (hrefBase === location.toString().split('#')[0] ||
                    (baseEl = $('base')[0]) && hrefBase === baseEl.href)) {
                href = a.hash;
                a.href = href;
            }
            // inline tab
            if (fragmentId.test(href)) {
                self.panels = self.panels.add(self._sanitizeSelector(href));
            }
            // remote tab
            else if (href != '#') { // prevent loading the page itself if href is just "#"
                $.data(a, 'href.tabs', href); // required for restore on destroy
                // TODO until #3808 is fixed strip fragment identifier from url
                // (IE fails to load from such url)
                $.data(a, 'load.tabs', href.replace(/#.*$/, '')); // mutable data
                var id = self._tabId(a);
                a.href = '#' + id;
                var $panel = $('#' + id);
                if (!$panel.length) {
                    $panel = $(o.panelTemplate).attr('id', id).addClass('ui-tabs-panel ui-widget-content ui-corner-bottom')
                        .insertAfter(self.panels[i - 1] || self.list);
                    $panel.data('destroy.tabs', true);
                }
                self.panels = self.panels.add($panel);
            }
            // invalid tab href
            else {
                o.disabled.push(i);
            }
        });
        // initialization from scratch
        if (init) {
            // attach necessary classes for styling
            this.element.addClass('ui-tabs ui-widget ui-widget-content ui-corner-all');
            this.list.addClass('ui-tabs-nav ui-helper-reset ui-helper-clearfix ui-widget-header ui-corner-all');
            this.lis.addClass('ui-state-default ui-corner-top');
            this.panels.addClass('ui-tabs-panel ui-widget-content ui-corner-bottom');
            // Selected tab
            // use "selected" option or try to retrieve:
            // 1. from fragment identifier in url
            // 2. from cookie
            // 3. from selected class attribute on <li>
            if (o.selected === undefined) {
                if (location.hash) {
                    this.anchors.each(function(i, a) {
                        if (a.hash == location.hash) {
                            o.selected = i;
                            return false; // break
                        }
                    });
                }
                if (typeof o.selected != 'number' && o.cookie) {
                    o.selected = parseInt(self._cookie(), 10);
                }
                if (typeof o.selected != 'number' && this.lis.filter('.ui-tabs-selected').length) {
                    o.selected = this.lis.index(this.lis.filter('.ui-tabs-selected'));
                }
                o.selected = o.selected || 0;
            }
            else if (o.selected === null) { // usage of null is deprecated, TODO remove in next release
                o.selected = -1;
            }
            // sanity check - default to first tab...
            o.selected = ((o.selected >= 0 && this.anchors[o.selected]) || o.selected < 0) ? o.selected : 0;
            // Take disabling tabs via class attribute from HTML
            // into account and update option properly.
            // A selected tab cannot become disabled.
            o.disabled = $.unique(o.disabled.concat(
                $.map(this.lis.filter('.ui-state-disabled'),
                    function(n, i) { return self.lis.index(n); } )
            )).sort();
            if ($.inArray(o.selected, o.disabled) != -1) {
                o.disabled.splice($.inArray(o.selected, o.disabled), 1);
            }
            // highlight selected tab
            this.panels.addClass('ui-tabs-hide');
            this.lis.removeClass('ui-tabs-selected ui-state-active');
            if (o.selected >= 0 && this.anchors.length) { // check for length avoids error when initializing empty list
                this.panels.eq(o.selected).removeClass('ui-tabs-hide');
                this.lis.eq(o.selected).addClass('ui-tabs-selected ui-state-active');
                // seems to be expected behavior that the show callback is fired
                self.element.queue("tabs", function() {
                    self._trigger('show', null, self._ui(self.anchors[o.selected], self.panels[o.selected]));
                });
                
                this.load(o.selected);
            }
            // clean up to avoid memory leaks in certain versions of IE 6
            $(window).bind('unload', function() {
                self.lis.add(self.anchors).unbind('.tabs');
                self.lis = self.anchors = self.panels = null;
            });
        }
        // update selected after add/remove
        else {
            o.selected = this.lis.index(this.lis.filter('.ui-tabs-selected'));
        }
        // update collapsible
        this.element[o.collapsible ? 'addClass' : 'removeClass']('ui-tabs-collapsible');
        // set or update cookie after init and add/remove respectively
        if (o.cookie) {
            this._cookie(o.selected, o.cookie);
        }
        // disable tabs
        for (var i = 0, li; (li = this.lis[i]); i++) {
            $(li)[$.inArray(i, o.disabled) != -1 &&
                !$(li).hasClass('ui-tabs-selected') ? 'addClass' : 'removeClass']('ui-state-disabled');
        }
        // reset cache if switching from cached to not cached
        if (o.cache === false) {
            this.anchors.removeData('cache.tabs');
        }
        // remove all handlers before, tabify may run on existing tabs after add or option change
        this.lis.add(this.anchors).unbind('.tabs');
        if (o.event != 'mouseover') {
            var addState = function(state, el) {
                if (el.is(':not(.ui-state-disabled)')) {
                    el.addClass('ui-state-' + state);
                }
            };
            var removeState = function(state, el) {
                el.removeClass('ui-state-' + state);
            };
            this.lis.bind('mouseover.tabs', function() {
                addState('hover', $(this));
            });
            this.lis.bind('mouseout.tabs', function() {
                removeState('hover', $(this));
            });
            this.anchors.bind('focus.tabs', function() {
                addState('focus', $(this).closest('li'));
            });
            this.anchors.bind('blur.tabs', function() {
                removeState('focus', $(this).closest('li'));
            });
        }
        // set up animations
        var hideFx, showFx;
        if (o.fx) {
            if ($.isArray(o.fx)) {
                hideFx = o.fx[0];
                showFx = o.fx[1];
            }
            else {
                hideFx = showFx = o.fx;
            }
        }
        // Reset certain styles left over from animation
        // and prevent IE's ClearType bug...
        function resetStyle($el, fx) {
            $el.css({ display: '' });
            if ($.browser.msie && fx.opacity) {
                $el[0].style.removeAttribute('filter');
            }
        }
        // Show a tab...
        var showTab = showFx ?
            function(clicked, $show) {
                $(clicked).closest('li').removeClass('ui-state-default').addClass('ui-tabs-selected ui-state-active');
                $show.hide().removeClass('ui-tabs-hide') // avoid flicker that way
                    .animate(showFx, showFx.duration || 'normal', function() {
                        resetStyle($show, showFx);
                        self._trigger('show', null, self._ui(clicked, $show[0]));
                    });
            } :
            function(clicked, $show) {
                $(clicked).closest('li').removeClass('ui-state-default').addClass('ui-tabs-selected ui-state-active');
                $show.removeClass('ui-tabs-hide');
                self._trigger('show', null, self._ui(clicked, $show[0]));
            };
        // Hide a tab, $show is optional...
        var hideTab = hideFx ?
            function(clicked, $hide) {
                $hide.animate(hideFx, hideFx.duration || 'normal', function() {
                    self.lis.removeClass('ui-tabs-selected ui-state-active').addClass('ui-state-default');
                    $hide.addClass('ui-tabs-hide');
                    resetStyle($hide, hideFx);
                    self.element.dequeue("tabs");
                });
            } :
            function(clicked, $hide, $show) {
                self.lis.removeClass('ui-tabs-selected ui-state-active').addClass('ui-state-default');
                $hide.addClass('ui-tabs-hide');
                self.element.dequeue("tabs");
            };
        // attach tab event handler, unbind to avoid duplicates from former tabifying...
        this.anchors.bind(o.event + '.tabs', function() {
            var el = this, $li = $(this).closest('li'), $hide = self.panels.filter(':not(.ui-tabs-hide)'),
                    $show = $(self._sanitizeSelector(this.hash));
            // If tab is already selected and not collapsible or tab disabled or
            // or is already loading or click callback returns false stop here.
            // Check if click handler returns false last so that it is not executed
            // for a disabled or loading tab!
            if (($li.hasClass('ui-tabs-selected') && !o.collapsible) ||
                $li.hasClass('ui-state-disabled') ||
                $li.hasClass('ui-state-processing') ||
                self._trigger('select', null, self._ui(this, $show[0])) === false) {
                this.blur();
                return false;
            }
            o.selected = self.anchors.index(this);
            self.abort();
            // if tab may be closed
            if (o.collapsible) {
                if ($li.hasClass('ui-tabs-selected')) {
                    o.selected = -1;
                    if (o.cookie) {
                        self._cookie(o.selected, o.cookie);
                    }
                    self.element.queue("tabs", function() {
                        hideTab(el, $hide);
                    }).dequeue("tabs");
                    
                    this.blur();
                    return false;
                }
                else if (!$hide.length) {
                    if (o.cookie) {
                        self._cookie(o.selected, o.cookie);
                    }
                    
                    self.element.queue("tabs", function() {
                        showTab(el, $show);
                    });
                    self.load(self.anchors.index(this)); // TODO make passing in node possible, see also http://dev.jqueryui.com/ticket/3171
                    
                    this.blur();
                    return false;
                }
            }
            if (o.cookie) {
                self._cookie(o.selected, o.cookie);
            }
            // show new tab
            if ($show.length) {
                if ($hide.length) {
                    self.element.queue("tabs", function() {
                        hideTab(el, $hide);
                    });
                }
                self.element.queue("tabs", function() {
                    showTab(el, $show);
                });
                
                self.load(self.anchors.index(this));
            }
            else {
                throw 'jQuery UI Tabs: Mismatching fragment identifier.';
            }
            // Prevent IE from keeping other link focussed when using the back button
            // and remove dotted border from clicked link. This is controlled via CSS
            // in modern browsers; blur() removes focus from address bar in Firefox
            // which can become a usability and annoying problem with tabs('rotate').
            if ($.browser.msie) {
                this.blur();
            }
        });
        // disable click in any case
        this.anchors.bind('click.tabs', function(){return false;});
    },
    destroy: function() {
        var o = this.options;
        this.abort();
        
        this.element.unbind('.tabs')
            .removeClass('ui-tabs ui-widget ui-widget-content ui-corner-all ui-tabs-collapsible')
            .removeData('tabs');
        this.list.removeClass('ui-tabs-nav ui-helper-reset ui-helper-clearfix ui-widget-header ui-corner-all');
        this.anchors.each(function() {
            var href = $.data(this, 'href.tabs');
            if (href) {
                this.href = href;
            }
            var $this = $(this).unbind('.tabs');
            $.each(['href', 'load', 'cache'], function(i, prefix) {
                $this.removeData(prefix + '.tabs');
            });
        });
        this.lis.unbind('.tabs').add(this.panels).each(function() {
            if ($.data(this, 'destroy.tabs')) {
                $(this).remove();
            }
            else {
                $(this).removeClass([
                    'ui-state-default',
                    'ui-corner-top',
                    'ui-tabs-selected',
                    'ui-state-active',
                    'ui-state-hover',
                    'ui-state-focus',
                    'ui-state-disabled',
                    'ui-tabs-panel',
                    'ui-widget-content',
                    'ui-corner-bottom',
                    'ui-tabs-hide'
                ].join(' '));
            }
        });
        if (o.cookie) {
            this._cookie(null, o.cookie);
        }
    },
    add: function(url, label, index) {
        if (index === undefined) {
            index = this.anchors.length; // append by default
        }
        var self = this, o = this.options,
            $li = $(o.tabTemplate.replace(/#\{href\}/g, url).replace(/#\{label\}/g, label)),
            id = !url.indexOf('#') ? url.replace('#', '') : this._tabId($('a', $li)[0]);
        $li.addClass('ui-state-default ui-corner-top').data('destroy.tabs', true);
        // try to find an existing element before creating a new one
        var $panel = $('#' + id);
        if (!$panel.length) {
            $panel = $(o.panelTemplate).attr('id', id).data('destroy.tabs', true);
        }
        $panel.addClass('ui-tabs-panel ui-widget-content ui-corner-bottom ui-tabs-hide');
        if (index >= this.lis.length) {
            $li.appendTo(this.list);
            $panel.appendTo(this.list[0].parentNode);
        }
        else {
            $li.insertBefore(this.lis[index]);
            $panel.insertBefore(this.panels[index]);
        }
        o.disabled = $.map(o.disabled,
            function(n, i) { return n >= index ? ++n : n; });
        this._tabify();
        if (this.anchors.length == 1) { // after tabify
            $li.addClass('ui-tabs-selected ui-state-active');
            $panel.removeClass('ui-tabs-hide');
            this.element.queue("tabs", function() {
                self._trigger('show', null, self._ui(self.anchors[0], self.panels[0]));
            });
                
            this.load(0);
        }
        // callback
        this._trigger('add', null, this._ui(this.anchors[index], this.panels[index]));
    },
    remove: function(index) {
        var o = this.options, $li = this.lis.eq(index).remove(),
            $panel = this.panels.eq(index).remove();
        // If selected tab was removed focus tab to the right or
        // in case the last tab was removed the tab to the left.
        if ($li.hasClass('ui-tabs-selected') && this.anchors.length > 1) {
            this.select(index + (index + 1 < this.anchors.length ? 1 : -1));
        }
        o.disabled = $.map($.grep(o.disabled, function(n, i) { return n != index; }),
            function(n, i) { return n >= index ? --n : n; });
        this._tabify();
        // callback
        this._trigger('remove', null, this._ui($li.find('a')[0], $panel[0]));
    },
    enable: function(index) {
        var o = this.options;
        if ($.inArray(index, o.disabled) == -1) {
            return;
        }
        this.lis.eq(index).removeClass('ui-state-disabled');
        o.disabled = $.grep(o.disabled, function(n, i) { return n != index; });
        // callback
        this._trigger('enable', null, this._ui(this.anchors[index], this.panels[index]));
    },
    disable: function(index) {
        var self = this, o = this.options;
        if (index != o.selected) { // cannot disable already selected tab
            this.lis.eq(index).addClass('ui-state-disabled');
            o.disabled.push(index);
            o.disabled.sort();
            // callback
            this._trigger('disable', null, this._ui(this.anchors[index], this.panels[index]));
        }
    },
    select: function(index) {
        if (typeof index == 'string') {
            index = this.anchors.index(this.anchors.filter('[href$=' + index + ']'));
        }
        else if (index === null) { // usage of null is deprecated, TODO remove in next release
            index = -1;
        }
        if (index == -1 && this.options.collapsible) {
            index = this.options.selected;
        }
        this.anchors.eq(index).trigger(this.options.event + '.tabs');
    },
    load: function(index) {
        var self = this, o = this.options, a = this.anchors.eq(index)[0], url = $.data(a, 'load.tabs');
        this.abort();
        // not remote or from cache
        if (!url || this.element.queue("tabs").length !== 0 && $.data(a, 'cache.tabs')) {
            this.element.dequeue("tabs");
            return;
        }
        // load remote from here on
        this.lis.eq(index).addClass('ui-state-processing');
        if (o.spinner) {
            var span = $('span', a);
            span.data('label.tabs', span.html()).html(o.spinner);
        }
        this.xhr = $.ajax($.extend({}, o.ajaxOptions, {
            url: url,
            success: function(r, s) {
                $(self._sanitizeSelector(a.hash)).html(r);
                // take care of tab labels
                self._cleanup();
                if (o.cache) {
                    $.data(a, 'cache.tabs', true); // if loaded once do not load them again
                }
                // callbacks
                self._trigger('load', null, self._ui(self.anchors[index], self.panels[index]));
                try {
                    o.ajaxOptions.success(r, s);
                }
                catch (e) {}
                // last, so that load event is fired before show...
                self.element.dequeue("tabs");
            }
        }));
    },
    abort: function() {
        // stop possibly running animations
        this.element.queue([]);
        this.panels.stop(false, true);
        // terminate pending requests from other tabs
        if (this.xhr) {
            this.xhr.abort();
            delete this.xhr;
        }
        // take care of tab labels
        this._cleanup();
    },
    url: function(index, url) {
        this.anchors.eq(index).removeData('cache.tabs').data('load.tabs', url);
    },
    length: function() {
        return this.anchors.length;
    }
});
$.extend($.ui.tabs, {
    version: '1.7.2',
    getter: 'length',
    defaults: {
        ajaxOptions: null,
        cache: false,
        cookie: null, // e.g. { expires: 7, path: '/', domain: 'jquery.com', secure: true }
        collapsible: false,
        disabled: [],
        event: 'click',
        fx: null, // e.g. { height: 'toggle', opacity: 'toggle', duration: 200 }
        idPrefix: 'ui-tabs-',
        panelTemplate: '<div></div>',
        spinner: '<em>Loading&#8230;</em>',
        tabTemplate: '<li><a href="#{href}"><span>#{label}</span></a></li>'
    }
});
/*
 * Tabs Extensions
 */
/*
 * Rotate
 */
$.extend($.ui.tabs.prototype, {
    rotation: null,
    rotate: function(ms, continuing) {
        var self = this, o = this.options;
        
        var rotate = self._rotate || (self._rotate = function(e) {
            clearTimeout(self.rotation);
            self.rotation = setTimeout(function() {
                var t = o.selected;
                self.select( ++t < self.anchors.length ? t : 0 );
            }, ms);
            
            if (e) {
                e.stopPropagation();
            }
        });
        
        var stop = self._unrotate || (self._unrotate = !continuing ?
            function(e) {
                if (e.clientX) { // in case of a true click
                    self.rotate(null);
                }
            } :
            function(e) {
                t = o.selected;
                rotate();
            });
        // start rotation
        if (ms) {
            this.element.bind('tabsshow', rotate);
            this.anchors.bind(o.event + '.tabs', stop);
            rotate();
        }
        // stop rotation
        else {
            clearTimeout(self.rotation);
            this.element.unbind('tabsshow', rotate);
            this.anchors.unbind(o.event + '.tabs', stop);
            delete this._rotate;
            delete this._unrotate;
        }
    }
});
})(jQuery);