/*!

* FullCalendar v1.6.4
* Docs & License: http://arshaw.com/fullcalendar/
* (c) 2013 Adam Shaw
*/

/*

* Use fullcalendar.css for basic styling.
* For event drag & drop, requires jQuery UI draggable.
* For event resizing, requires jQuery UI resizable.
*/

(function($, undefined) {

;;

var defaults = {

// display
defaultView: 'month',
aspectRatio: 1.35,
header: {
        left: 'title',
        center: '',
        right: 'today prev,next'
},
weekends: true,
weekNumbers: false,
weekNumberCalculation: 'iso',
weekNumberTitle: 'W',

// editing
//editable: false,
//disableDragging: false,
//disableResizing: false,

allDayDefault: true,
ignoreTimezone: true,

// event ajax
lazyFetching: true,
startParam: 'start',
endParam: 'end',

// time formats
titleFormat: {
        month: 'MMMM yyyy',
        week: "MMM d[ yyyy]{ '—'[ MMM] d yyyy}",
        day: 'dddd, MMM d, yyyy'
},
columnFormat: {
        month: 'ddd',
        week: 'ddd M/d',
        day: 'dddd M/d'
},
timeFormat: { // for event elements
        '': 'h(:mm)t' // default
},

// locale
isRTL: false,
firstDay: 0,
monthNames: ['January','February','March','April','May','June','July','August','September','October','November','December'],
monthNamesShort: ['Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec'],
dayNames: ['Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday'],
dayNamesShort: ['Sun','Mon','Tue','Wed','Thu','Fri','Sat'],
buttonText: {
        prev: "<span class='fc-text-arrow'>&lsaquo;</span>",
        next: "<span class='fc-text-arrow'>&rsaquo;</span>",
        prevYear: "<span class='fc-text-arrow'>&laquo;</span>",
        nextYear: "<span class='fc-text-arrow'>&raquo;</span>",
        today: 'today',
        month: 'month',
        week: 'week',
        day: 'day'
},

// jquery-ui theming
theme: false,
buttonIcons: {
        prev: 'circle-triangle-w',
        next: 'circle-triangle-e'
},

//selectable: false,
unselectAuto: true,

dropAccept: '*',

handleWindowResize: true

};

// right-to-left defaults var rtlDefaults = {

header: {
        left: 'next,prev today',
        center: '',
        right: 'title'
},
buttonText: {
        prev: "<span class='fc-text-arrow'>&rsaquo;</span>",
        next: "<span class='fc-text-arrow'>&lsaquo;</span>",
        prevYear: "<span class='fc-text-arrow'>&raquo;</span>",
        nextYear: "<span class='fc-text-arrow'>&laquo;</span>"
},
buttonIcons: {
        prev: 'circle-triangle-e',
        next: 'circle-triangle-w'
}

};

;;

var fc = $.fullCalendar = { version: “1.6.4” }; var fcViews = fc.views = {};

$.fn.fullCalendar = function(options) {

// method calling
if (typeof options == 'string') {
        var args = Array.prototype.slice.call(arguments, 1);
        var res;
        this.each(function() {
                var calendar = $.data(this, 'fullCalendar');
                if (calendar && $.isFunction(calendar[options])) {
                        var r = calendar[options].apply(calendar, args);
                        if (res === undefined) {
                                res = r;
                        }
                        if (options == 'destroy') {
                                $.removeData(this, 'fullCalendar');
                        }
                }
        });
        if (res !== undefined) {
                return res;
        }
        return this;
}

options = options || {};

// would like to have this logic in EventManager, but needs to happen before options are recursively extended
var eventSources = options.eventSources || [];
delete options.eventSources;
if (options.events) {
        eventSources.push(options.events);
        delete options.events;
}

options = $.extend(true, {},
        defaults,
        (options.isRTL || options.isRTL===undefined && defaults.isRTL) ? rtlDefaults : {},
        options
);

this.each(function(i, _element) {
        var element = $(_element);
        var calendar = new Calendar(element, options, eventSources);
        element.data('fullCalendar', calendar); // TODO: look into memory leak implications
        calendar.render();
});

return this;

};

// function for adding/overriding defaults function setDefaults(d) {

$.extend(true, defaults, d);

}

;;

function Calendar(element, options, eventSources) {

var t = this;

// exports
t.options = options;
t.render = render;
t.destroy = destroy;
t.refetchEvents = refetchEvents;
t.reportEvents = reportEvents;
t.reportEventChange = reportEventChange;
t.rerenderEvents = rerenderEvents;
t.changeView = changeView;
t.select = select;
t.unselect = unselect;
t.prev = prev;
t.next = next;
t.prevYear = prevYear;
t.nextYear = nextYear;
t.today = today;
t.gotoDate = gotoDate;
t.incrementDate = incrementDate;
t.formatDate = function(format, date) { return formatDate(format, date, options) };
t.formatDates = function(format, date1, date2) { return formatDates(format, date1, date2, options) };
t.getDate = getDate;
t.getView = getView;
t.option = option;
t.trigger = trigger;

// imports
EventManager.call(t, options, eventSources);
var isFetchNeeded = t.isFetchNeeded;
var fetchEvents = t.fetchEvents;

// locals
var _element = element[0];
var header;
var headerElement;
var content;
var tm; // for making theme classes
var currentView;
var elementOuterWidth;
var suggestedViewHeight;
var resizeUID = 0;
var ignoreWindowResize = 0;
var date = new Date();
var events = [];
var _dragElement;

/* Main Rendering
-----------------------------------------------------------------------------*/

setYMD(date, options.year, options.month, options.date);

function render(inc) {
        if (!content) {
                initialRender();
        }
        else if (elementVisible()) {
                // mainly for the public API
                calcSize();
                _renderView(inc);
        }
}

function initialRender() {
        tm = options.theme ? 'ui' : 'fc';
        element.addClass('fc');
        if (options.isRTL) {
                element.addClass('fc-rtl');
        }
        else {
                element.addClass('fc-ltr');
        }
        if (options.theme) {
                element.addClass('ui-widget');
        }

        content = $("<div class='fc-content' style='position:relative'/>")
                .prependTo(element);

        header = new Header(t, options);
        headerElement = header.render();
        if (headerElement) {
                element.prepend(headerElement);
        }

        changeView(options.defaultView);

        if (options.handleWindowResize) {
                $(window).resize(windowResize);
        }

        // needed for IE in a 0x0 iframe, b/c when it is resized, never triggers a windowResize
        if (!bodyVisible()) {
                lateRender();
        }
}

// called when we know the calendar couldn't be rendered when it was initialized,
// but we think it's ready now
function lateRender() {
        setTimeout(function() { // IE7 needs this so dimensions are calculated correctly
                if (!currentView.start && bodyVisible()) { // !currentView.start makes sure this never happens more than once
                        renderView();
                }
        },0);
}

function destroy() {

        if (currentView) {
                trigger('viewDestroy', currentView, currentView, currentView.element);
                currentView.triggerEventDestroy();
        }

        $(window).unbind('resize', windowResize);

        header.destroy();
        content.remove();
        element.removeClass('fc fc-rtl ui-widget');
}

function elementVisible() {
        return element.is(':visible');
}

function bodyVisible() {
        return $('body').is(':visible');
}

/* View Rendering
-----------------------------------------------------------------------------*/

function changeView(newViewName) {
        if (!currentView || newViewName != currentView.name) {
                _changeView(newViewName);
        }
}

function _changeView(newViewName) {
        ignoreWindowResize++;

        if (currentView) {
                trigger('viewDestroy', currentView, currentView, currentView.element);
                unselect();
                currentView.triggerEventDestroy(); // trigger 'eventDestroy' for each event
                freezeContentHeight();
                currentView.element.remove();
                header.deactivateButton(currentView.name);
        }

        header.activateButton(newViewName);

        currentView = new fcViews[newViewName](
                $("<div class='fc-view fc-view-" + newViewName + "' style='position:relative'/>")
                        .appendTo(content),
                t // the calendar object
        );

        renderView();
        unfreezeContentHeight();

        ignoreWindowResize--;
}

function renderView(inc) {
        if (
                !currentView.start || // never rendered before
                inc || date < currentView.start || date >= currentView.end // or new date range
        ) {
                if (elementVisible()) {
                        _renderView(inc);
                }
        }
}

function _renderView(inc) { // assumes elementVisible
        ignoreWindowResize++;

        if (currentView.start) { // already been rendered?
                trigger('viewDestroy', currentView, currentView, currentView.element);
                unselect();
                clearEvents();
        }

        freezeContentHeight();
        currentView.render(date, inc || 0); // the view's render method ONLY renders the skeleton, nothing else
        setSize();
        unfreezeContentHeight();
        (currentView.afterRender || noop)();

        updateTitle();
        updateTodayButton();

        trigger('viewRender', currentView, currentView, currentView.element);
        currentView.trigger('viewDisplay', _element); // deprecated

        ignoreWindowResize--;

        getAndRenderEvents();
}

/* Resizing
-----------------------------------------------------------------------------*/

function updateSize() {
        if (elementVisible()) {
                unselect();
                clearEvents();
                calcSize();
                setSize();
                renderEvents();
        }
}

function calcSize() { // assumes elementVisible
        if (options.contentHeight) {
                suggestedViewHeight = options.contentHeight;
        }
        else if (options.height) {
                suggestedViewHeight = options.height - (headerElement ? headerElement.height() : 0) - vsides(content);
        }
        else {
                suggestedViewHeight = Math.round(content.width() / Math.max(options.aspectRatio, .5));
        }
}

function setSize() { // assumes elementVisible

        if (suggestedViewHeight === undefined) {
                calcSize(); // for first time
                        // NOTE: we don't want to recalculate on every renderView because
                        // it could result in oscillating heights due to scrollbars.
        }

        ignoreWindowResize++;
        currentView.setHeight(suggestedViewHeight);
        currentView.setWidth(content.width());
        ignoreWindowResize--;

        elementOuterWidth = element.outerWidth();
}

function windowResize() {
        if (!ignoreWindowResize) {
                if (currentView.start) { // view has already been rendered
                        var uid = ++resizeUID;
                        setTimeout(function() { // add a delay
                                if (uid == resizeUID && !ignoreWindowResize && elementVisible()) {
                                        if (elementOuterWidth != (elementOuterWidth = element.outerWidth())) {
                                                ignoreWindowResize++; // in case the windowResize callback changes the height
                                                updateSize();
                                                currentView.trigger('windowResize', _element);
                                                ignoreWindowResize--;
                                        }
                                }
                        }, 200);
                }else{
                        // calendar must have been initialized in a 0x0 iframe that has just been resized
                        lateRender();
                }
        }
}

/* Event Fetching/Rendering
-----------------------------------------------------------------------------*/
// TODO: going forward, most of this stuff should be directly handled by the view

function refetchEvents() { // can be called as an API method
        clearEvents();
        fetchAndRenderEvents();
}

function rerenderEvents(modifiedEventID) { // can be called as an API method
        clearEvents();
        renderEvents(modifiedEventID);
}

function renderEvents(modifiedEventID) { // TODO: remove modifiedEventID hack
        if (elementVisible()) {
                currentView.setEventData(events); // for View.js, TODO: unify with renderEvents
                currentView.renderEvents(events, modifiedEventID); // actually render the DOM elements
                currentView.trigger('eventAfterAllRender');
        }
}

function clearEvents() {
        currentView.triggerEventDestroy(); // trigger 'eventDestroy' for each event
        currentView.clearEvents(); // actually remove the DOM elements
        currentView.clearEventData(); // for View.js, TODO: unify with clearEvents
}

function getAndRenderEvents() {
        if (!options.lazyFetching || isFetchNeeded(currentView.visStart, currentView.visEnd)) {
                fetchAndRenderEvents();
        }
        else {
                renderEvents();
        }
}

function fetchAndRenderEvents() {
        fetchEvents(currentView.visStart, currentView.visEnd);
                // ... will call reportEvents
                // ... which will call renderEvents
}

// called when event data arrives
function reportEvents(_events) {
        events = _events;
        renderEvents();
}

// called when a single event's data has been changed
function reportEventChange(eventID) {
        rerenderEvents(eventID);
}

/* Header Updating
-----------------------------------------------------------------------------*/

function updateTitle() {
        header.updateTitle(currentView.title);
}

function updateTodayButton() {
        var today = new Date();
        if (today >= currentView.start && today < currentView.end) {
                header.disableButton('today');
        }
        else {
                header.enableButton('today');
        }
}

/* Selection
-----------------------------------------------------------------------------*/

function select(start, end, allDay) {
        currentView.select(start, end, allDay===undefined ? true : allDay);
}

function unselect() { // safe to be called before renderView
        if (currentView) {
                currentView.unselect();
        }
}

/* Date
-----------------------------------------------------------------------------*/

function prev() {
        renderView(-1);
}

function next() {
        renderView(1);
}

function prevYear() {
        addYears(date, -1);
        renderView();
}

function nextYear() {
        addYears(date, 1);
        renderView();
}

function today() {
        date = new Date();
        renderView();
}

function gotoDate(year, month, dateOfMonth) {
        if (year instanceof Date) {
                date = cloneDate(year); // provided 1 argument, a Date
        }else{
                setYMD(date, year, month, dateOfMonth);
        }
        renderView();
}

function incrementDate(years, months, days) {
        if (years !== undefined) {
                addYears(date, years);
        }
        if (months !== undefined) {
                addMonths(date, months);
        }
        if (days !== undefined) {
                addDays(date, days);
        }
        renderView();
}

function getDate() {
        return cloneDate(date);
}

/* Height "Freezing"
-----------------------------------------------------------------------------*/

function freezeContentHeight() {
        content.css({
                width: '100%',
                height: content.height(),
                overflow: 'hidden'
        });
}

function unfreezeContentHeight() {
        content.css({
                width: '',
                height: '',
                overflow: ''
        });
}

/* Misc
-----------------------------------------------------------------------------*/

function getView() {
        return currentView;
}

function option(name, value) {
        if (value === undefined) {
                return options[name];
        }
        if (name == 'height' || name == 'contentHeight' || name == 'aspectRatio') {
                options[name] = value;
                updateSize();
        }
}

function trigger(name, thisObj) {
        if (options[name]) {
                return options[name].apply(
                        thisObj || _element,
                        Array.prototype.slice.call(arguments, 2)
                );
        }
}

/* External Dragging
------------------------------------------------------------------------*/

if (options.droppable) {
        $(document)
                .bind('dragstart', function(ev, ui) {
                        var _e = ev.target;
                        var e = $(_e);
                        if (!e.parents('.fc').length) { // not already inside a calendar
                                var accept = options.dropAccept;
                                if ($.isFunction(accept) ? accept.call(_e, e) : e.is(accept)) {
                                        _dragElement = _e;
                                        currentView.dragStart(_dragElement, ev, ui);
                                }
                        }
                })
                .bind('dragstop', function(ev, ui) {
                        if (_dragElement) {
                                currentView.dragStop(_dragElement, ev, ui);
                                _dragElement = null;
                        }
                });
}

}

;;

function Header(calendar, options) {

var t = this;

// exports
t.render = render;
t.destroy = destroy;
t.updateTitle = updateTitle;
t.activateButton = activateButton;
t.deactivateButton = deactivateButton;
t.disableButton = disableButton;
t.enableButton = enableButton;

// locals
var element = $([]);
var tm;

function render() {
        tm = options.theme ? 'ui' : 'fc';
        var sections = options.header;
        if (sections) {
                element = $("<table class='fc-header' style='width:100%'/>")
                        .append(
                                $("<tr/>")
                                        .append(renderSection('left'))
                                        .append(renderSection('center'))
                                        .append(renderSection('right'))
                        );
                return element;
        }
}

function destroy() {
        element.remove();
}

function renderSection(position) {
        var e = $("<td class='fc-header-" + position + "'/>");
        var buttonStr = options.header[position];
        if (buttonStr) {
                $.each(buttonStr.split(' '), function(i) {
                        if (i > 0) {
                                e.append("<span class='fc-header-space'/>");
                        }
                        var prevButton;
                        $.each(this.split(','), function(j, buttonName) {
                                if (buttonName == 'title') {
                                        e.append("<span class='fc-header-title'><h2>&nbsp;</h2></span>");
                                        if (prevButton) {
                                                prevButton.addClass(tm + '-corner-right');
                                        }
                                        prevButton = null;
                                }else{
                                        var buttonClick;
                                        if (calendar[buttonName]) {
                                                buttonClick = calendar[buttonName]; // calendar method
                                        }
                                        else if (fcViews[buttonName]) {
                                                buttonClick = function() {
                                                        button.removeClass(tm + '-state-hover'); // forget why
                                                        calendar.changeView(buttonName);
                                                };
                                        }
                                        if (buttonClick) {
                                                var icon = options.theme ? smartProperty(options.buttonIcons, buttonName) : null; // why are we using smartProperty here?
                                                var text = smartProperty(options.buttonText, buttonName); // why are we using smartProperty here?
                                                var button = $(
                                                        "<span class='fc-button fc-button-" + buttonName + " " + tm + "-state-default'>" +
                                                                (icon ?
                                                                        "<span class='fc-icon-wrap'>" +
                                                                                "<span class='ui-icon ui-icon-" + icon + "'/>" +
                                                                        "</span>" :
                                                                        text
                                                                        ) +
                                                        "</span>"
                                                        )
                                                        .click(function() {
                                                                if (!button.hasClass(tm + '-state-disabled')) {
                                                                        buttonClick();
                                                                }
                                                        })
                                                        .mousedown(function() {
                                                                button
                                                                        .not('.' + tm + '-state-active')
                                                                        .not('.' + tm + '-state-disabled')
                                                                        .addClass(tm + '-state-down');
                                                        })
                                                        .mouseup(function() {
                                                                button.removeClass(tm + '-state-down');
                                                        })
                                                        .hover(
                                                                function() {
                                                                        button
                                                                                .not('.' + tm + '-state-active')
                                                                                .not('.' + tm + '-state-disabled')
                                                                                .addClass(tm + '-state-hover');
                                                                },
                                                                function() {
                                                                        button
                                                                                .removeClass(tm + '-state-hover')
                                                                                .removeClass(tm + '-state-down');
                                                                }
                                                        )
                                                        .appendTo(e);
                                                disableTextSelection(button);
                                                if (!prevButton) {
                                                        button.addClass(tm + '-corner-left');
                                                }
                                                prevButton = button;
                                        }
                                }
                        });
                        if (prevButton) {
                                prevButton.addClass(tm + '-corner-right');
                        }
                });
        }
        return e;
}

function updateTitle(html) {
        element.find('h2')
                .html(html);
}

function activateButton(buttonName) {
        element.find('span.fc-button-' + buttonName)
                .addClass(tm + '-state-active');
}

function deactivateButton(buttonName) {
        element.find('span.fc-button-' + buttonName)
                .removeClass(tm + '-state-active');
}

function disableButton(buttonName) {
        element.find('span.fc-button-' + buttonName)
                .addClass(tm + '-state-disabled');
}

function enableButton(buttonName) {
        element.find('span.fc-button-' + buttonName)
                .removeClass(tm + '-state-disabled');
}

}

;;

fc.sourceNormalizers = []; fc.sourceFetchers = [];

var ajaxDefaults = {

dataType: 'json',
cache: false

};

var eventGUID = 1;

function EventManager(options, _sources) {

var t = this;

// exports
t.isFetchNeeded = isFetchNeeded;
t.fetchEvents = fetchEvents;
t.addEventSource = addEventSource;
t.removeEventSource = removeEventSource;
t.updateEvent = updateEvent;
t.renderEvent = renderEvent;
t.removeEvents = removeEvents;
t.clientEvents = clientEvents;
t.normalizeEvent = normalizeEvent;

// imports
var trigger = t.trigger;
var getView = t.getView;
var reportEvents = t.reportEvents;

// locals
var stickySource = { events: [] };
var sources = [ stickySource ];
var rangeStart, rangeEnd;
var currentFetchID = 0;
var pendingSourceCnt = 0;
var loadingLevel = 0;
var cache = [];

for (var i=0; i<_sources.length; i++) {
        _addEventSource(_sources[i]);
}

/* Fetching
-----------------------------------------------------------------------------*/

function isFetchNeeded(start, end) {
        return !rangeStart || start < rangeStart || end > rangeEnd;
}

function fetchEvents(start, end) {
        rangeStart = start;
        rangeEnd = end;
        cache = [];
        var fetchID = ++currentFetchID;
        var len = sources.length;
        pendingSourceCnt = len;
        for (var i=0; i<len; i++) {
                fetchEventSource(sources[i], fetchID);
        }
}

function fetchEventSource(source, fetchID) {
        _fetchEventSource(source, function(events) {
                if (fetchID == currentFetchID) {
                        if (events) {

                                if (options.eventDataTransform) {
                                        events = $.map(events, options.eventDataTransform);
                                }
                                if (source.eventDataTransform) {
                                        events = $.map(events, source.eventDataTransform);
                                }
                                // TODO: this technique is not ideal for static array event sources.
                                //  For arrays, we'll want to process all events right in the beginning, then never again.

                                for (var i=0; i<events.length; i++) {
                                        events[i].source = source;
                                        normalizeEvent(events[i]);
                                }
                                cache = cache.concat(events);
                        }
                        pendingSourceCnt--;
                        if (!pendingSourceCnt) {
                                reportEvents(cache);
                        }
                }
        });
}

function _fetchEventSource(source, callback) {
        var i;
        var fetchers = fc.sourceFetchers;
        var res;
        for (i=0; i<fetchers.length; i++) {
                res = fetchers[i](source, rangeStart, rangeEnd, callback);
                if (res === true) {
                        // the fetcher is in charge. made its own async request
                        return;
                }
                else if (typeof res == 'object') {
                        // the fetcher returned a new source. process it
                        _fetchEventSource(res, callback);
                        return;
                }
        }
        var events = source.events;
        if (events) {
                if ($.isFunction(events)) {
                        pushLoading();
                        events(cloneDate(rangeStart), cloneDate(rangeEnd), function(events) {
                                callback(events);
                                popLoading();
                        });
                }
                else if ($.isArray(events)) {
                        callback(events);
                }
                else {
                        callback();
                }
        }else{
                var url = source.url;
                if (url) {
                        var success = source.success;
                        var error = source.error;
                        var complete = source.complete;

                        // retrieve any outbound GET/POST $.ajax data from the options
                        var customData;
                        if ($.isFunction(source.data)) {
                                // supplied as a function that returns a key/value object
                                customData = source.data();
                        }
                        else {
                                // supplied as a straight key/value object
                                customData = source.data;
                        }

                        // use a copy of the custom data so we can modify the parameters
                        // and not affect the passed-in object.
                        var data = $.extend({}, customData || {});

                        var startParam = firstDefined(source.startParam, options.startParam);
                        var endParam = firstDefined(source.endParam, options.endParam);
                        if (startParam) {
                                data[startParam] = Math.round(+rangeStart / 1000);
                        }
                        if (endParam) {
                                data[endParam] = Math.round(+rangeEnd / 1000);
                        }

                        pushLoading();
                        $.ajax($.extend({}, ajaxDefaults, source, {
                                data: data,
                                success: function(events) {
                                        events = events || [];
                                        var res = applyAll(success, this, arguments);
                                        if ($.isArray(res)) {
                                                events = res;
                                        }
                                        callback(events);
                                },
                                error: function() {
                                        applyAll(error, this, arguments);
                                        callback();
                                },
                                complete: function() {
                                        applyAll(complete, this, arguments);
                                        popLoading();
                                }
                        }));
                }else{
                        callback();
                }
        }
}

/* Sources
-----------------------------------------------------------------------------*/

function addEventSource(source) {
        source = _addEventSource(source);
        if (source) {
                pendingSourceCnt++;
                fetchEventSource(source, currentFetchID); // will eventually call reportEvents
        }
}

function _addEventSource(source) {
        if ($.isFunction(source) || $.isArray(source)) {
                source = { events: source };
        }
        else if (typeof source == 'string') {
                source = { url: source };
        }
        if (typeof source == 'object') {
                normalizeSource(source);
                sources.push(source);
                return source;
        }
}

function removeEventSource(source) {
        sources = $.grep(sources, function(src) {
                return !isSourcesEqual(src, source);
        });
        // remove all client events from that source
        cache = $.grep(cache, function(e) {
                return !isSourcesEqual(e.source, source);
        });
        reportEvents(cache);
}

/* Manipulation
-----------------------------------------------------------------------------*/

function updateEvent(event) { // update an existing event
        var i, len = cache.length, e,
                defaultEventEnd = getView().defaultEventEnd, // getView???
                startDelta = event.start - event._start,
                endDelta = event.end ?
                        (event.end - (event._end || defaultEventEnd(event))) // event._end would be null if event.end
                        : 0;                                                      // was null and event was just resized
        for (i=0; i<len; i++) {
                e = cache[i];
                if (e._id == event._id && e != event) {
                        e.start = new Date(+e.start + startDelta);
                        if (event.end) {
                                if (e.end) {
                                        e.end = new Date(+e.end + endDelta);
                                }else{
                                        e.end = new Date(+defaultEventEnd(e) + endDelta);
                                }
                        }else{
                                e.end = null;
                        }
                        e.title = event.title;
                        e.url = event.url;
                        e.allDay = event.allDay;
                        e.className = event.className;
                        e.editable = event.editable;
                        e.color = event.color;
                        e.backgroundColor = event.backgroundColor;
                        e.borderColor = event.borderColor;
                        e.textColor = event.textColor;
                        normalizeEvent(e);
                }
        }
        normalizeEvent(event);
        reportEvents(cache);
}

function renderEvent(event, stick) {
        normalizeEvent(event);
        if (!event.source) {
                if (stick) {
                        stickySource.events.push(event);
                        event.source = stickySource;
                }
                cache.push(event);
        }
        reportEvents(cache);
}

function removeEvents(filter) {
        if (!filter) { // remove all
                cache = [];
                // clear all array sources
                for (var i=0; i<sources.length; i++) {
                        if ($.isArray(sources[i].events)) {
                                sources[i].events = [];
                        }
                }
        }else{
                if (!$.isFunction(filter)) { // an event ID
                        var id = filter + '';
                        filter = function(e) {
                                return e._id == id;
                        };
                }
                cache = $.grep(cache, filter, true);
                // remove events from array sources
                for (var i=0; i<sources.length; i++) {
                        if ($.isArray(sources[i].events)) {
                                sources[i].events = $.grep(sources[i].events, filter, true);
                        }
                }
        }
        reportEvents(cache);
}

function clientEvents(filter) {
        if ($.isFunction(filter)) {
                return $.grep(cache, filter);
        }
        else if (filter) { // an event ID
                filter += '';
                return $.grep(cache, function(e) {
                        return e._id == filter;
                });
        }
        return cache; // else, return all
}

/* Loading State
-----------------------------------------------------------------------------*/

function pushLoading() {
        if (!loadingLevel++) {
                trigger('loading', null, true, getView());
        }
}

function popLoading() {
        if (!--loadingLevel) {
                trigger('loading', null, false, getView());
        }
}

/* Event Normalization
-----------------------------------------------------------------------------*/

function normalizeEvent(event) {
        var source = event.source || {};
        var ignoreTimezone = firstDefined(source.ignoreTimezone, options.ignoreTimezone);
        event._id = event._id || (event.id === undefined ? '_fc' + eventGUID++ : event.id + '');
        if (event.date) {
                if (!event.start) {
                        event.start = event.date;
                }
                delete event.date;
        }
        event._start = cloneDate(event.start = parseDate(event.start, ignoreTimezone));
        event.end = parseDate(event.end, ignoreTimezone);
        if (event.end && event.end <= event.start) {
                event.end = null;
        }
        event._end = event.end ? cloneDate(event.end) : null;
        if (event.allDay === undefined) {
                event.allDay = firstDefined(source.allDayDefault, options.allDayDefault);
        }
        if (event.className) {
                if (typeof event.className == 'string') {
                        event.className = event.className.split(/\s+/);
                }
        }else{
                event.className = [];
        }
        // TODO: if there is no start date, return false to indicate an invalid event
}

/* Utils
------------------------------------------------------------------------------*/

function normalizeSource(source) {
        if (source.className) {
                // TODO: repeat code, same code for event classNames
                if (typeof source.className == 'string') {
                        source.className = source.className.split(/\s+/);
                }
        }else{
                source.className = [];
        }
        var normalizers = fc.sourceNormalizers;
        for (var i=0; i<normalizers.length; i++) {
                normalizers[i](source);
        }
}

function isSourcesEqual(source1, source2) {
        return source1 && source2 && getSourcePrimitive(source1) == getSourcePrimitive(source2);
}

function getSourcePrimitive(source) {
        return ((typeof source == 'object') ? (source.events || source.url) : '') || source;
}

}

;;

fc.addDays = addDays; fc.cloneDate = cloneDate; fc.parseDate = parseDate; fc.parseISO8601 = parseISO8601; fc.parseTime = parseTime; fc.formatDate = formatDate; fc.formatDates = formatDates;

/* Date Math —————————————————————————–*/

var dayIDs = [‘sun’, ‘mon’, ‘tue’, ‘wed’, ‘thu’, ‘fri’, ‘sat’],

DAY_MS = 86400000,
HOUR_MS = 3600000,
MINUTE_MS = 60000;

function addYears(d, n, keepTime) {

d.setFullYear(d.getFullYear() + n);
if (!keepTime) {
        clearTime(d);
}
return d;

}

function addMonths(d, n, keepTime) { // prevents day overflow/underflow

if (+d) { // prevent infinite looping on invalid dates
        var m = d.getMonth() + n,
                check = cloneDate(d);
        check.setDate(1);
        check.setMonth(m);
        d.setMonth(m);
        if (!keepTime) {
                clearTime(d);
        }
        while (d.getMonth() != check.getMonth()) {
                d.setDate(d.getDate() + (d < check ? 1 : -1));
        }
}
return d;

}

function addDays(d, n, keepTime) { // deals with daylight savings

if (+d) {
        var dd = d.getDate() + n,
                check = cloneDate(d);
        check.setHours(9); // set to middle of day
        check.setDate(dd);
        d.setDate(dd);
        if (!keepTime) {
                clearTime(d);
        }
        fixDate(d, check);
}
return d;

}

function fixDate(d, check) { // force d to be on check’s YMD, for daylight savings purposes

if (+d) { // prevent infinite looping on invalid dates
        while (d.getDate() != check.getDate()) {
                d.setTime(+d + (d < check ? 1 : -1) * HOUR_MS);
        }
}

}

function addMinutes(d, n) {

d.setMinutes(d.getMinutes() + n);
return d;

}

function clearTime(d) {

d.setHours(0);
d.setMinutes(0);
d.setSeconds(0); 
d.setMilliseconds(0);
return d;

}

function cloneDate(d, dontKeepTime) {

if (dontKeepTime) {
        return clearTime(new Date(+d));
}
return new Date(+d);

}

function zeroDate() { // returns a Date with time 00:00:00 and dateOfMonth=1

var i=0, d;
do {
        d = new Date(1970, i++, 1);
} while (d.getHours()); // != 0
return d;

}

function dayDiff(d1, d2) { // d1 - d2

return Math.round((cloneDate(d1, true) - cloneDate(d2, true)) / DAY_MS);

}

function setYMD(date, y, m, d) {

if (y !== undefined && y != date.getFullYear()) {
        date.setDate(1);
        date.setMonth(0);
        date.setFullYear(y);
}
if (m !== undefined && m != date.getMonth()) {
        date.setDate(1);
        date.setMonth(m);
}
if (d !== undefined) {
        date.setDate(d);
}

}

/* Date Parsing —————————————————————————–*/

function parseDate(s, ignoreTimezone) { // ignoreTimezone defaults to true

if (typeof s == 'object') { // already a Date object
        return s;
}
if (typeof s == 'number') { // a UNIX timestamp
        return new Date(s * 1000);
}
if (typeof s == 'string') {
        if (s.match(/^\d+(\.\d+)?$/)) { // a UNIX timestamp
                return new Date(parseFloat(s) * 1000);
        }
        if (ignoreTimezone === undefined) {
                ignoreTimezone = true;
        }
        return parseISO8601(s, ignoreTimezone) || (s ? new Date(s) : null);
}
// TODO: never return invalid dates (like from new Date(<string>)), return null instead
return null;

}

function parseISO8601(s, ignoreTimezone) { // ignoreTimezone defaults to false

// derived from http://delete.me.uk/2005/03/iso8601.html
// TODO: for a know glitch/feature, read tests/issue_206_parseDate_dst.html
var m = s.match(/^([0-9]{4})(-([0-9]{2})(-([0-9]{2})([T ]([0-9]{2}):([0-9]{2})(:([0-9]{2})(\.([0-9]+))?)?(Z|(([-+])([0-9]{2})(:?([0-9]{2}))?))?)?)?)?$/);
if (!m) {
        return null;
}
var date = new Date(m[1], 0, 1);
if (ignoreTimezone || !m[13]) {
        var check = new Date(m[1], 0, 1, 9, 0);
        if (m[3]) {
                date.setMonth(m[3] - 1);
                check.setMonth(m[3] - 1);
        }
        if (m[5]) {
                date.setDate(m[5]);
                check.setDate(m[5]);
        }
        fixDate(date, check);
        if (m[7]) {
                date.setHours(m[7]);
        }
        if (m[8]) {
                date.setMinutes(m[8]);
        }
        if (m[10]) {
                date.setSeconds(m[10]);
        }
        if (m[12]) {
                date.setMilliseconds(Number("0." + m[12]) * 1000);
        }
        fixDate(date, check);
}else{
        date.setUTCFullYear(
                m[1],
                m[3] ? m[3] - 1 : 0,
                m[5] || 1
        );
        date.setUTCHours(
                m[7] || 0,
                m[8] || 0,
                m[10] || 0,
                m[12] ? Number("0." + m[12]) * 1000 : 0
        );
        if (m[14]) {
                var offset = Number(m[16]) * 60 + (m[18] ? Number(m[18]) : 0);
                offset *= m[15] == '-' ? 1 : -1;
                date = new Date(+date + (offset * 60 * 1000));
        }
}
return date;

}

function parseTime(s) { // returns minutes since start of day

if (typeof s == 'number') { // an hour
        return s * 60;
}
if (typeof s == 'object') { // a Date object
        return s.getHours() * 60 + s.getMinutes();
}
var m = s.match(/(\d+)(?::(\d+))?\s*(\w+)?/);
if (m) {
        var h = parseInt(m[1], 10);
        if (m[3]) {
                h %= 12;
                if (m[3].toLowerCase().charAt(0) == 'p') {
                        h += 12;
                }
        }
        return h * 60 + (m[2] ? parseInt(m[2], 10) : 0);
}

}

/* Date Formatting —————————————————————————–*/ // TODO: use same function formatDate(date, [date2], format, [options])

function formatDate(date, format, options) {

return formatDates(date, null, format, options);

}

function formatDates(date1, date2, format, options) {

options = options || defaults;
var date = date1,
        otherDate = date2,
        i, len = format.length, c,
        i2, formatter,
        res = '';
for (i=0; i<len; i++) {
        c = format.charAt(i);
        if (c == "'") {
                for (i2=i+1; i2<len; i2++) {
                        if (format.charAt(i2) == "'") {
                                if (date) {
                                        if (i2 == i+1) {
                                                res += "'";
                                        }else{
                                                res += format.substring(i+1, i2);
                                        }
                                        i = i2;
                                }
                                break;
                        }
                }
        }
        else if (c == '(') {
                for (i2=i+1; i2<len; i2++) {
                        if (format.charAt(i2) == ')') {
                                var subres = formatDate(date, format.substring(i+1, i2), options);
                                if (parseInt(subres.replace(/\D/, ''), 10)) {
                                        res += subres;
                                }
                                i = i2;
                                break;
                        }
                }
        }
        else if (c == '[') {
                for (i2=i+1; i2<len; i2++) {
                        if (format.charAt(i2) == ']') {
                                var subformat = format.substring(i+1, i2);
                                var subres = formatDate(date, subformat, options);
                                if (subres != formatDate(otherDate, subformat, options)) {
                                        res += subres;
                                }
                                i = i2;
                                break;
                        }
                }
        }
        else if (c == '{') {
                date = date2;
                otherDate = date1;
        }
        else if (c == '}') {
                date = date1;
                otherDate = date2;
        }
        else {
                for (i2=len; i2>i; i2--) {
                        if (formatter = dateFormatters[format.substring(i, i2)]) {
                                if (date) {
                                        res += formatter(date, options);
                                }
                                i = i2 - 1;
                                break;
                        }
                }
                if (i2 == i) {
                        if (date) {
                                res += c;
                        }
                }
        }
}
return res;

};

var dateFormatters = {

s       : function(d)   { return d.getSeconds() },
ss      : function(d)   { return zeroPad(d.getSeconds()) },
m       : function(d)   { return d.getMinutes() },
mm      : function(d)   { return zeroPad(d.getMinutes()) },
h       : function(d)   { return d.getHours() % 12 || 12 },
hh      : function(d)   { return zeroPad(d.getHours() % 12 || 12) },
H       : function(d)   { return d.getHours() },
HH      : function(d)   { return zeroPad(d.getHours()) },
d       : function(d)   { return d.getDate() },
dd      : function(d)   { return zeroPad(d.getDate()) },
ddd     : function(d,o) { return o.dayNamesShort[d.getDay()] },
dddd: function(d,o)     { return o.dayNames[d.getDay()] },
M       : function(d)   { return d.getMonth() + 1 },
MM      : function(d)   { return zeroPad(d.getMonth() + 1) },
MMM     : function(d,o) { return o.monthNamesShort[d.getMonth()] },
MMMM: function(d,o)     { return o.monthNames[d.getMonth()] },
yy      : function(d)   { return (d.getFullYear()+'').substring(2) },
yyyy: function(d)       { return d.getFullYear() },
t       : function(d)   { return d.getHours() < 12 ? 'a' : 'p' },
tt      : function(d)   { return d.getHours() < 12 ? 'am' : 'pm' },
T       : function(d)   { return d.getHours() < 12 ? 'A' : 'P' },
TT      : function(d)   { return d.getHours() < 12 ? 'AM' : 'PM' },
u       : function(d)   { return formatDate(d, "yyyy-MM-dd'T'HH:mm:ss'Z'") },
S       : function(d)   {
        var date = d.getDate();
        if (date > 10 && date < 20) {
                return 'th';
        }
        return ['st', 'nd', 'rd'][date%10-1] || 'th';
},
w   : function(d, o) { // local
        return o.weekNumberCalculation(d);
},
W   : function(d) { // ISO
        return iso8601Week(d);
}

}; fc.dateFormatters = dateFormatters;

/* thanks jQuery UI (github.com/jquery/jquery-ui/blob/master/ui/jquery.ui.datepicker.js)

* 
* Set as calculateWeek to determine the week of the year based on the ISO 8601 definition.
* `date` - the date to get the week for
* `number` - the number of the week within the year that contains this date
*/

function iso8601Week(date) {

var time;
var checkDate = new Date(date.getTime());

// Find Thursday of this week starting on Monday
checkDate.setDate(checkDate.getDate() + 4 - (checkDate.getDay() || 7));

time = checkDate.getTime();
checkDate.setMonth(0); // Compare with Jan 1
checkDate.setDate(1);
return Math.floor(Math.round((time - checkDate) / 86400000) / 7) + 1;

}

;;

fc.applyAll = applyAll;

/* Event Date Math —————————————————————————–*/

function exclEndDay(event) {

if (event.end) {
        return _exclEndDay(event.end, event.allDay);
}else{
        return addDays(cloneDate(event.start), 1);
}

}

function _exclEndDay(end, allDay) {

end = cloneDate(end);
return allDay || end.getHours() || end.getMinutes() ? addDays(end, 1) : clearTime(end);
// why don't we check for seconds/ms too?

}

/* Event Element Binding —————————————————————————–*/

function lazySegBind(container, segs, bindHandlers) {

container.unbind('mouseover').mouseover(function(ev) {
        var parent=ev.target, e,
                i, seg;
        while (parent != this) {
                e = parent;
                parent = parent.parentNode;
        }
        if ((i = e._fci) !== undefined) {
                e._fci = undefined;
                seg = segs[i];
                bindHandlers(seg.event, seg.element, seg);
                $(ev.target).trigger(ev);
        }
        ev.stopPropagation();
});

}

/* Element Dimensions —————————————————————————–*/

function setOuterWidth(element, width, includeMargins) {

for (var i=0, e; i<element.length; i++) {
        e = $(element[i]);
        e.width(Math.max(0, width - hsides(e, includeMargins)));
}

}

function setOuterHeight(element, height, includeMargins) {

for (var i=0, e; i<element.length; i++) {
        e = $(element[i]);
        e.height(Math.max(0, height - vsides(e, includeMargins)));
}

}

function hsides(element, includeMargins) {

return hpadding(element) + hborders(element) + (includeMargins ? hmargins(element) : 0);

}

function hpadding(element) {

return (parseFloat($.css(element[0], 'paddingLeft', true)) || 0) +
       (parseFloat($.css(element[0], 'paddingRight', true)) || 0);

}

function hmargins(element) {

return (parseFloat($.css(element[0], 'marginLeft', true)) || 0) +
       (parseFloat($.css(element[0], 'marginRight', true)) || 0);

}

function hborders(element) {

return (parseFloat($.css(element[0], 'borderLeftWidth', true)) || 0) +
       (parseFloat($.css(element[0], 'borderRightWidth', true)) || 0);

}

function vsides(element, includeMargins) {

return vpadding(element) +  vborders(element) + (includeMargins ? vmargins(element) : 0);

}

function vpadding(element) {

return (parseFloat($.css(element[0], 'paddingTop', true)) || 0) +
       (parseFloat($.css(element[0], 'paddingBottom', true)) || 0);

}

function vmargins(element) {

return (parseFloat($.css(element[0], 'marginTop', true)) || 0) +
       (parseFloat($.css(element[0], 'marginBottom', true)) || 0);

}

function vborders(element) {

return (parseFloat($.css(element[0], 'borderTopWidth', true)) || 0) +
       (parseFloat($.css(element[0], 'borderBottomWidth', true)) || 0);

}

/* Misc Utils —————————————————————————–*/

//TODO: arraySlice //TODO: isFunction, grep ?

function noop() { }

function dateCompare(a, b) {

return a - b;

}

function arrayMax(a) {

return Math.max.apply(Math, a);

}

function zeroPad(n) {

return (n < 10 ? '0' : '') + n;

}

function smartProperty(obj, name) { // get a camel-cased/namespaced property of an object

if (obj[name] !== undefined) {
        return obj[name];
}
var parts = name.split(/(?=[A-Z])/),
        i=parts.length-1, res;
for (; i>=0; i--) {
        res = obj[parts[i].toLowerCase()];
        if (res !== undefined) {
                return res;
        }
}
return obj[''];

}

function htmlEscape(s) {

return s.replace(/&/g, '&amp;')
        .replace(/</g, '&lt;')
        .replace(/>/g, '&gt;')
        .replace(/'/g, '&#039;')
        .replace(/"/g, '&quot;')
        .replace(/\n/g, '<br />');

}

function disableTextSelection(element) {

element
        .attr('unselectable', 'on')
        .css('MozUserSelect', 'none')
        .bind('selectstart.ui', function() { return false; });

}

/* function enableTextSelection(element) {

element
        .attr('unselectable', 'off')
        .css('MozUserSelect', '')
        .unbind('selectstart.ui');

} */

function markFirstLast(e) {

e.children()
        .removeClass('fc-first fc-last')
        .filter(':first-child')
                .addClass('fc-first')
        .end()
        .filter(':last-child')
                .addClass('fc-last');

}

function setDayID(cell, date) {

cell.each(function(i, _cell) {
        _cell.className = _cell.className.replace(/^fc-\w*/, 'fc-' + dayIDs[date.getDay()]);
        // TODO: make a way that doesn't rely on order of classes
});

}

function getSkinCss(event, opt) {

var source = event.source || {};
var eventColor = event.color;
var sourceColor = source.color;
var optionColor = opt('eventColor');
var backgroundColor =
        event.backgroundColor ||
        eventColor ||
        source.backgroundColor ||
        sourceColor ||
        opt('eventBackgroundColor') ||
        optionColor;
var borderColor =
        event.borderColor ||
        eventColor ||
        source.borderColor ||
        sourceColor ||
        opt('eventBorderColor') ||
        optionColor;
var textColor =
        event.textColor ||
        source.textColor ||
        opt('eventTextColor');
var statements = [];
if (backgroundColor) {
        statements.push('background-color:' + backgroundColor);
}
if (borderColor) {
        statements.push('border-color:' + borderColor);
}
if (textColor) {
        statements.push('color:' + textColor);
}
return statements.join(';');

}

function applyAll(functions, thisObj, args) {

if ($.isFunction(functions)) {
        functions = [ functions ];
}
if (functions) {
        var i;
        var ret;
        for (i=0; i<functions.length; i++) {
                ret = functions[i].apply(thisObj, args) || ret;
        }
        return ret;
}

}

function firstDefined() {

for (var i=0; i<arguments.length; i++) {
        if (arguments[i] !== undefined) {
                return arguments[i];
        }
}

}

;;

fcViews.month = MonthView;

function MonthView(element, calendar) {

var t = this;

// exports
t.render = render;

// imports
BasicView.call(t, element, calendar, 'month');
var opt = t.opt;
var renderBasic = t.renderBasic;
var skipHiddenDays = t.skipHiddenDays;
var getCellsPerWeek = t.getCellsPerWeek;
var formatDate = calendar.formatDate;

function render(date, delta) {

        if (delta) {
                addMonths(date, delta);
                date.setDate(1);
        }

        var firstDay = opt('firstDay');

        var start = cloneDate(date, true);
        start.setDate(1);

        var end = addMonths(cloneDate(start), 1);

        var visStart = cloneDate(start);
        addDays(visStart, -((visStart.getDay() - firstDay + 7) % 7));
        skipHiddenDays(visStart);

        var visEnd = cloneDate(end);
        addDays(visEnd, (7 - visEnd.getDay() + firstDay) % 7);
        skipHiddenDays(visEnd, -1, true);

        var colCnt = getCellsPerWeek();
        var rowCnt = Math.round(dayDiff(visEnd, visStart) / 7); // should be no need for Math.round

        if (opt('weekMode') == 'fixed') {
                addDays(visEnd, (6 - rowCnt) * 7); // add weeks to make up for it
                rowCnt = 6;
        }

        t.title = formatDate(start, opt('titleFormat'));

        t.start = start;
        t.end = end;
        t.visStart = visStart;
        t.visEnd = visEnd;

        renderBasic(rowCnt, colCnt, true);
}

}

;;

fcViews.basicWeek = BasicWeekView;

function BasicWeekView(element, calendar) {

var t = this;

// exports
t.render = render;

// imports
BasicView.call(t, element, calendar, 'basicWeek');
var opt = t.opt;
var renderBasic = t.renderBasic;
var skipHiddenDays = t.skipHiddenDays;
var getCellsPerWeek = t.getCellsPerWeek;
var formatDates = calendar.formatDates;

function render(date, delta) {

        if (delta) {
                addDays(date, delta * 7);
        }

        var start = addDays(cloneDate(date), -((date.getDay() - opt('firstDay') + 7) % 7));
        var end = addDays(cloneDate(start), 7);

        var visStart = cloneDate(start);
        skipHiddenDays(visStart);

        var visEnd = cloneDate(end);
        skipHiddenDays(visEnd, -1, true);

        var colCnt = getCellsPerWeek();

        t.start = start;
        t.end = end;
        t.visStart = visStart;
        t.visEnd = visEnd;

        t.title = formatDates(
                visStart,
                addDays(cloneDate(visEnd), -1),
                opt('titleFormat')
        );

        renderBasic(1, colCnt, false);
}

}

;;

fcViews.basicDay = BasicDayView;

function BasicDayView(element, calendar) {

var t = this;

// exports
t.render = render;

// imports
BasicView.call(t, element, calendar, 'basicDay');
var opt = t.opt;
var renderBasic = t.renderBasic;
var skipHiddenDays = t.skipHiddenDays;
var formatDate = calendar.formatDate;

function render(date, delta) {

        if (delta) {
                addDays(date, delta);
        }
        skipHiddenDays(date, delta < 0 ? -1 : 1);

        var start = cloneDate(date, true);
        var end = addDays(cloneDate(start), 1);

        t.title = formatDate(date, opt('titleFormat'));

        t.start = t.visStart = start;
        t.end = t.visEnd = end;

        renderBasic(1, 1, false);
}

}

;;

setDefaults({

weekMode: 'fixed'

});

function BasicView(element, calendar, viewName) {

var t = this;

// exports
t.renderBasic = renderBasic;
t.setHeight = setHeight;
t.setWidth = setWidth;
t.renderDayOverlay = renderDayOverlay;
t.defaultSelectionEnd = defaultSelectionEnd;
t.renderSelection = renderSelection;
t.clearSelection = clearSelection;
t.reportDayClick = reportDayClick; // for selection (kinda hacky)
t.dragStart = dragStart;
t.dragStop = dragStop;
t.defaultEventEnd = defaultEventEnd;
t.getHoverListener = function() { return hoverListener };
t.colLeft = colLeft;
t.colRight = colRight;
t.colContentLeft = colContentLeft;
t.colContentRight = colContentRight;
t.getIsCellAllDay = function() { return true };
t.allDayRow = allDayRow;
t.getRowCnt = function() { return rowCnt };
t.getColCnt = function() { return colCnt };
t.getColWidth = function() { return colWidth };
t.getDaySegmentContainer = function() { return daySegmentContainer };

// imports
View.call(t, element, calendar, viewName);
OverlayManager.call(t);
SelectionManager.call(t);
BasicEventRenderer.call(t);
var opt = t.opt;
var trigger = t.trigger;
var renderOverlay = t.renderOverlay;
var clearOverlays = t.clearOverlays;
var daySelectionMousedown = t.daySelectionMousedown;
var cellToDate = t.cellToDate;
var dateToCell = t.dateToCell;
var rangeToSegments = t.rangeToSegments;
var formatDate = calendar.formatDate;

// locals

var table;
var head;
var headCells;
var body;
var bodyRows;
var bodyCells;
var bodyFirstCells;
var firstRowCellInners;
var firstRowCellContentInners;
var daySegmentContainer;

var viewWidth;
var viewHeight;
var colWidth;
var weekNumberWidth;

var rowCnt, colCnt;
var showNumbers;
var coordinateGrid;
var hoverListener;
var colPositions;
var colContentPositions;

var tm;
var colFormat;
var showWeekNumbers;
var weekNumberTitle;
var weekNumberFormat;

/* Rendering
------------------------------------------------------------*/

disableTextSelection(element.addClass('fc-grid'));

function renderBasic(_rowCnt, _colCnt, _showNumbers) {
        rowCnt = _rowCnt;
        colCnt = _colCnt;
        showNumbers = _showNumbers;
        updateOptions();

        if (!body) {
                buildEventContainer();
        }

        buildTable();
}

function updateOptions() {
        tm = opt('theme') ? 'ui' : 'fc';
        colFormat = opt('columnFormat');

        // week # options. (TODO: bad, logic also in other views)
        showWeekNumbers = opt('weekNumbers');
        weekNumberTitle = opt('weekNumberTitle');
        if (opt('weekNumberCalculation') != 'iso') {
                weekNumberFormat = "w";
        }
        else {
                weekNumberFormat = "W";
        }
}

function buildEventContainer() {
        daySegmentContainer =
                $("<div class='fc-event-container' style='position:absolute;z-index:8;top:0;left:0'/>")
                        .appendTo(element);
}

function buildTable() {
        var html = buildTableHTML();

        if (table) {
                table.remove();
        }
        table = $(html).appendTo(element);

        head = table.find('thead');
        headCells = head.find('.fc-day-header');
        body = table.find('tbody');
        bodyRows = body.find('tr');
        bodyCells = body.find('.fc-day');
        bodyFirstCells = bodyRows.find('td:first-child');

        firstRowCellInners = bodyRows.eq(0).find('.fc-day > div');
        firstRowCellContentInners = bodyRows.eq(0).find('.fc-day-content > div');

        markFirstLast(head.add(head.find('tr'))); // marks first+last tr/th's
        markFirstLast(bodyRows); // marks first+last td's
        bodyRows.eq(0).addClass('fc-first');
        bodyRows.filter(':last').addClass('fc-last');

        bodyCells.each(function(i, _cell) {
                var date = cellToDate(
                        Math.floor(i / colCnt),
                        i % colCnt
                );
                trigger('dayRender', t, date, $(_cell));
        });

        dayBind(bodyCells);
}

/* HTML Building
-----------------------------------------------------------*/

function buildTableHTML() {
        var html =
                "<table class='fc-border-separate' style='width:100%' cellspacing='0'>" +
                buildHeadHTML() +
                buildBodyHTML() +
                "</table>";

        return html;
}

function buildHeadHTML() {
        var headerClass = tm + "-widget-header";
        var html = '';
        var col;
        var date;

        html += "<thead><tr>";

        if (showWeekNumbers) {
                html +=
                        "<th class='fc-week-number " + headerClass + "'>" +
                        htmlEscape(weekNumberTitle) +
                        "</th>";
        }

        for (col=0; col<colCnt; col++) {
                date = cellToDate(0, col);
                html +=
                        "<th class='fc-day-header fc-" + dayIDs[date.getDay()] + " " + headerClass + "'>" +
                        htmlEscape(formatDate(date, colFormat)) +
                        "</th>";
        }

        html += "</tr></thead>";

        return html;
}

function buildBodyHTML() {
        var contentClass = tm + "-widget-content";
        var html = '';
        var row;
        var col;
        var date;

        html += "<tbody>";

        for (row=0; row<rowCnt; row++) {

                html += "<tr class='fc-week'>";

                if (showWeekNumbers) {
                        date = cellToDate(row, 0);
                        html +=
                                "<td class='fc-week-number " + contentClass + "'>" +
                                "<div>" +
                                htmlEscape(formatDate(date, weekNumberFormat)) +
                                "</div>" +
                                "</td>";
                }

                for (col=0; col<colCnt; col++) {
                        date = cellToDate(row, col);
                        html += buildCellHTML(date);
                }

                html += "</tr>";
        }

        html += "</tbody>";

        return html;
}

function buildCellHTML(date) {
        var contentClass = tm + "-widget-content";
        var month = t.start.getMonth();
        var today = clearTime(new Date());
        var html = '';
        var classNames = [
                'fc-day',
                'fc-' + dayIDs[date.getDay()],
                contentClass
        ];

        if (date.getMonth() != month) {
                classNames.push('fc-other-month');
        }
        if (+date == +today) {
                classNames.push(
                        'fc-today',
                        tm + '-state-highlight'
                );
        }
        else if (date < today) {
                classNames.push('fc-past');
        }
        else {
                classNames.push('fc-future');
        }

        html +=
                "<td" +
                " class='" + classNames.join(' ') + "'" +
                " data-date='" + formatDate(date, 'yyyy-MM-dd') + "'" +
                ">" +
                "<div>";

        if (showNumbers) {
                html += "<div class='fc-day-number'>" + date.getDate() + "</div>";
        }

        html +=
                "<div class='fc-day-content'>" +
                "<div style='position:relative'>&nbsp;</div>" +
                "</div>" +
                "</div>" +
                "</td>";

        return html;
}

/* Dimensions
-----------------------------------------------------------*/

function setHeight(height) {
        viewHeight = height;

        var bodyHeight = viewHeight - head.height();
        var rowHeight;
        var rowHeightLast;
        var cell;

        if (opt('weekMode') == 'variable') {
                rowHeight = rowHeightLast = Math.floor(bodyHeight / (rowCnt==1 ? 2 : 6));
        }else{
                rowHeight = Math.floor(bodyHeight / rowCnt);
                rowHeightLast = bodyHeight - rowHeight * (rowCnt-1);
        }

        bodyFirstCells.each(function(i, _cell) {
                if (i < rowCnt) {
                        cell = $(_cell);
                        cell.find('> div').css(
                                'min-height',
                                (i==rowCnt-1 ? rowHeightLast : rowHeight) - vsides(cell)
                        );
                }
        });

}

function setWidth(width) {
        viewWidth = width;
        colPositions.clear();
        colContentPositions.clear();

        weekNumberWidth = 0;
        if (showWeekNumbers) {
                weekNumberWidth = head.find('th.fc-week-number').outerWidth();
        }

        colWidth = Math.floor((viewWidth - weekNumberWidth) / colCnt);
        setOuterWidth(headCells.slice(0, -1), colWidth);
}

/* Day clicking and binding
-----------------------------------------------------------*/

function dayBind(days) {
        days.click(dayClick)
                .mousedown(daySelectionMousedown);
}

function dayClick(ev) {
        if (!opt('selectable')) { // if selectable, SelectionManager will worry about dayClick
                var date = parseISO8601($(this).data('date'));
                trigger('dayClick', this, date, true, ev);
        }
}

/* Semi-transparent Overlay Helpers
------------------------------------------------------*/
// TODO: should be consolidated with AgendaView's methods

function renderDayOverlay(overlayStart, overlayEnd, refreshCoordinateGrid) { // overlayEnd is exclusive

        if (refreshCoordinateGrid) {
                coordinateGrid.build();
        }

        var segments = rangeToSegments(overlayStart, overlayEnd);

        for (var i=0; i<segments.length; i++) {
                var segment = segments[i];
                dayBind(
                        renderCellOverlay(
                                segment.row,
                                segment.leftCol,
                                segment.row,
                                segment.rightCol
                        )
                );
        }
}

function renderCellOverlay(row0, col0, row1, col1) { // row1,col1 is inclusive
        var rect = coordinateGrid.rect(row0, col0, row1, col1, element);
        return renderOverlay(rect, element);
}

/* Selection
-----------------------------------------------------------------------*/

function defaultSelectionEnd(startDate, allDay) {
        return cloneDate(startDate);
}

function renderSelection(startDate, endDate, allDay) {
        renderDayOverlay(startDate, addDays(cloneDate(endDate), 1), true); // rebuild every time???
}

function clearSelection() {
        clearOverlays();
}

function reportDayClick(date, allDay, ev) {
        var cell = dateToCell(date);
        var _element = bodyCells[cell.row*colCnt + cell.col];
        trigger('dayClick', _element, date, allDay, ev);
}

/* External Dragging
-----------------------------------------------------------------------*/

function dragStart(_dragElement, ev, ui) {
        hoverListener.start(function(cell) {
                clearOverlays();
                if (cell) {
                        renderCellOverlay(cell.row, cell.col, cell.row, cell.col);
                }
        }, ev);
}

function dragStop(_dragElement, ev, ui) {
        var cell = hoverListener.stop();
        clearOverlays();
        if (cell) {
                var d = cellToDate(cell);
                trigger('drop', _dragElement, d, true, ev, ui);
        }
}

/* Utilities
--------------------------------------------------------*/

function defaultEventEnd(event) {
        return cloneDate(event.start);
}

coordinateGrid = new CoordinateGrid(function(rows, cols) {
        var e, n, p;
        headCells.each(function(i, _e) {
                e = $(_e);
                n = e.offset().left;
                if (i) {
                        p[1] = n;
                }
                p = [n];
                cols[i] = p;
        });
        p[1] = n + e.outerWidth();
        bodyRows.each(function(i, _e) {
                if (i < rowCnt) {
                        e = $(_e);
                        n = e.offset().top;
                        if (i) {
                                p[1] = n;
                        }
                        p = [n];
                        rows[i] = p;
                }
        });
        p[1] = n + e.outerHeight();
});

hoverListener = new HoverListener(coordinateGrid);

colPositions = new HorizontalPositionCache(function(col) {
        return firstRowCellInners.eq(col);
});

colContentPositions = new HorizontalPositionCache(function(col) {
        return firstRowCellContentInners.eq(col);
});

function colLeft(col) {
        return colPositions.left(col);
}

function colRight(col) {
        return colPositions.right(col);
}

function colContentLeft(col) {
        return colContentPositions.left(col);
}

function colContentRight(col) {
        return colContentPositions.right(col);
}

function allDayRow(i) {
        return bodyRows.eq(i);
}

}

;;

function BasicEventRenderer() {

var t = this;

// exports
t.renderEvents = renderEvents;
t.clearEvents = clearEvents;

// imports
DayEventRenderer.call(t);

function renderEvents(events, modifiedEventId) {
        t.renderDayEvents(events, modifiedEventId);
}

function clearEvents() {
        t.getDaySegmentContainer().empty();
}

// TODO: have this class (and AgendaEventRenderer) be responsible for creating the event container div

}

;;

fcViews.agendaWeek = AgendaWeekView;

function AgendaWeekView(element, calendar) {

var t = this;

// exports
t.render = render;

// imports
AgendaView.call(t, element, calendar, 'agendaWeek');
var opt = t.opt;
var renderAgenda = t.renderAgenda;
var skipHiddenDays = t.skipHiddenDays;
var getCellsPerWeek = t.getCellsPerWeek;
var formatDates = calendar.formatDates;

function render(date, delta) {

        if (delta) {
                addDays(date, delta * 7);
        }

        var start = addDays(cloneDate(date), -((date.getDay() - opt('firstDay') + 7) % 7));
        var end = addDays(cloneDate(start), 7);

        var visStart = cloneDate(start);
        skipHiddenDays(visStart);

        var visEnd = cloneDate(end);
        skipHiddenDays(visEnd, -1, true);

        var colCnt = getCellsPerWeek();

        t.title = formatDates(
                visStart,
                addDays(cloneDate(visEnd), -1),
                opt('titleFormat')
        );

        t.start = start;
        t.end = end;
        t.visStart = visStart;
        t.visEnd = visEnd;

        renderAgenda(colCnt);
}

}

;;

fcViews.agendaDay = AgendaDayView;

function AgendaDayView(element, calendar) {

var t = this;

// exports
t.render = render;

// imports
AgendaView.call(t, element, calendar, 'agendaDay');
var opt = t.opt;
var renderAgenda = t.renderAgenda;
var skipHiddenDays = t.skipHiddenDays;
var formatDate = calendar.formatDate;

function render(date, delta) {

        if (delta) {
                addDays(date, delta);
        }
        skipHiddenDays(date, delta < 0 ? -1 : 1);

        var start = cloneDate(date, true);
        var end = addDays(cloneDate(start), 1);

        t.title = formatDate(date, opt('titleFormat'));

        t.start = t.visStart = start;
        t.end = t.visEnd = end;

        renderAgenda(1);
}

}

;;

setDefaults({

allDaySlot: true,
allDayText: 'all-day',
firstHour: 6,
slotMinutes: 30,
defaultEventMinutes: 120,
axisFormat: 'h(:mm)tt',
timeFormat: {
        agenda: 'h:mm{ - h:mm}'
},
dragOpacity: {
        agenda: .5
},
minTime: 0,
maxTime: 24,
slotEventOverlap: true

});

// TODO: make it work in quirks mode (event corners, all-day height) // TODO: test liquid width, especially in IE6

function AgendaView(element, calendar, viewName) {

var t = this;

// exports
t.renderAgenda = renderAgenda;
t.setWidth = setWidth;
t.setHeight = setHeight;
t.afterRender = afterRender;
t.defaultEventEnd = defaultEventEnd;
t.timePosition = timePosition;
t.getIsCellAllDay = getIsCellAllDay;
t.allDayRow = getAllDayRow;
t.getCoordinateGrid = function() { return coordinateGrid }; // specifically for AgendaEventRenderer
t.getHoverListener = function() { return hoverListener };
t.colLeft = colLeft;
t.colRight = colRight;
t.colContentLeft = colContentLeft;
t.colContentRight = colContentRight;
t.getDaySegmentContainer = function() { return daySegmentContainer };
t.getSlotSegmentContainer = function() { return slotSegmentContainer };
t.getMinMinute = function() { return minMinute };
t.getMaxMinute = function() { return maxMinute };
t.getSlotContainer = function() { return slotContainer };
t.getRowCnt = function() { return 1 };
t.getColCnt = function() { return colCnt };
t.getColWidth = function() { return colWidth };
t.getSnapHeight = function() { return snapHeight };
t.getSnapMinutes = function() { return snapMinutes };
t.defaultSelectionEnd = defaultSelectionEnd;
t.renderDayOverlay = renderDayOverlay;
t.renderSelection = renderSelection;
t.clearSelection = clearSelection;
t.reportDayClick = reportDayClick; // selection mousedown hack
t.dragStart = dragStart;
t.dragStop = dragStop;

// imports
View.call(t, element, calendar, viewName);
OverlayManager.call(t);
SelectionManager.call(t);
AgendaEventRenderer.call(t);
var opt = t.opt;
var trigger = t.trigger;
var renderOverlay = t.renderOverlay;
var clearOverlays = t.clearOverlays;
var reportSelection = t.reportSelection;
var unselect = t.unselect;
var daySelectionMousedown = t.daySelectionMousedown;
var slotSegHtml = t.slotSegHtml;
var cellToDate = t.cellToDate;
var dateToCell = t.dateToCell;
var rangeToSegments = t.rangeToSegments;
var formatDate = calendar.formatDate;

// locals

var dayTable;
var dayHead;
var dayHeadCells;
var dayBody;
var dayBodyCells;
var dayBodyCellInners;
var dayBodyCellContentInners;
var dayBodyFirstCell;
var dayBodyFirstCellStretcher;
var slotLayer;
var daySegmentContainer;
var allDayTable;
var allDayRow;
var slotScroller;
var slotContainer;
var slotSegmentContainer;
var slotTable;
var selectionHelper;

var viewWidth;
var viewHeight;
var axisWidth;
var colWidth;
var gutterWidth;
var slotHeight; // TODO: what if slotHeight changes? (see issue 650)

var snapMinutes;
var snapRatio; // ratio of number of "selection" slots to normal slots. (ex: 1, 2, 4)
var snapHeight; // holds the pixel hight of a "selection" slot

var colCnt;
var slotCnt;
var coordinateGrid;
var hoverListener;
var colPositions;
var colContentPositions;
var slotTopCache = {};

var tm;
var rtl;
var minMinute, maxMinute;
var colFormat;
var showWeekNumbers;
var weekNumberTitle;
var weekNumberFormat;

/* Rendering
-----------------------------------------------------------------------------*/

disableTextSelection(element.addClass('fc-agenda'));

function renderAgenda(c) {
        colCnt = c;
        updateOptions();

        if (!dayTable) { // first time rendering?
                buildSkeleton(); // builds day table, slot area, events containers
        }
        else {
                buildDayTable(); // rebuilds day table
        }
}

function updateOptions() {

        tm = opt('theme') ? 'ui' : 'fc';
        rtl = opt('isRTL')
        minMinute = parseTime(opt('minTime'));
        maxMinute = parseTime(opt('maxTime'));
        colFormat = opt('columnFormat');

        // week # options. (TODO: bad, logic also in other views)
        showWeekNumbers = opt('weekNumbers');
        weekNumberTitle = opt('weekNumberTitle');
        if (opt('weekNumberCalculation') != 'iso') {
                weekNumberFormat = "w";
        }
        else {
                weekNumberFormat = "W";
        }

        snapMinutes = opt('snapMinutes') || opt('slotMinutes');
}

/* Build DOM
-----------------------------------------------------------------------*/

function buildSkeleton() {
        var headerClass = tm + "-widget-header";
        var contentClass = tm + "-widget-content";
        var s;
        var d;
        var i;
        var maxd;
        var minutes;
        var slotNormal = opt('slotMinutes') % 15 == 0;

        buildDayTable();

        slotLayer =
                $("<div style='position:absolute;z-index:2;left:0;width:100%'/>")
                        .appendTo(element);

        if (opt('allDaySlot')) {

                daySegmentContainer =
                        $("<div class='fc-event-container' style='position:absolute;z-index:8;top:0;left:0'/>")
                                .appendTo(slotLayer);

                s =
                        "<table style='width:100%' class='fc-agenda-allday' cellspacing='0'>" +
                        "<tr>" +
                        "<th class='" + headerClass + " fc-agenda-axis'>" + opt('allDayText') + "</th>" +
                        "<td>" +
                        "<div class='fc-day-content'><div style='position:relative'/></div>" +
                        "</td>" +
                        "<th class='" + headerClass + " fc-agenda-gutter'>&nbsp;</th>" +
                        "</tr>" +
                        "</table>";
                allDayTable = $(s).appendTo(slotLayer);
                allDayRow = allDayTable.find('tr');

                dayBind(allDayRow.find('td'));

                slotLayer.append(
                        "<div class='fc-agenda-divider " + headerClass + "'>" +
                        "<div class='fc-agenda-divider-inner'/>" +
                        "</div>"
                );

        }else{

                daySegmentContainer = $([]); // in jQuery 1.4, we can just do $()

        }

        slotScroller =
                $("<div style='position:absolute;width:100%;overflow-x:hidden;overflow-y:auto'/>")
                        .appendTo(slotLayer);

        slotContainer =
                $("<div style='position:relative;width:100%;overflow:hidden'/>")
                        .appendTo(slotScroller);

        slotSegmentContainer =
                $("<div class='fc-event-container' style='position:absolute;z-index:8;top:0;left:0'/>")
                        .appendTo(slotContainer);

        s =
                "<table class='fc-agenda-slots' style='width:100%' cellspacing='0'>" +
                "<tbody>";
        d = zeroDate();
        maxd = addMinutes(cloneDate(d), maxMinute);
        addMinutes(d, minMinute);
        slotCnt = 0;
        for (i=0; d < maxd; i++) {
                minutes = d.getMinutes();
                s +=
                        "<tr class='fc-slot" + i + ' ' + (!minutes ? '' : 'fc-minor') + "'>" +
                        "<th class='fc-agenda-axis " + headerClass + "'>" +
                        ((!slotNormal || !minutes) ? formatDate(d, opt('axisFormat')) : '&nbsp;') +
                        "</th>" +
                        "<td class='" + contentClass + "'>" +
                        "<div style='position:relative'>&nbsp;</div>" +
                        "</td>" +
                        "</tr>";
                addMinutes(d, opt('slotMinutes'));
                slotCnt++;
        }
        s +=
                "</tbody>" +
                "</table>";
        slotTable = $(s).appendTo(slotContainer);

        slotBind(slotTable.find('td'));
}

/* Build Day Table
-----------------------------------------------------------------------*/

function buildDayTable() {
        var html = buildDayTableHTML();

        if (dayTable) {
                dayTable.remove();
        }
        dayTable = $(html).appendTo(element);

        dayHead = dayTable.find('thead');
        dayHeadCells = dayHead.find('th').slice(1, -1); // exclude gutter
        dayBody = dayTable.find('tbody');
        dayBodyCells = dayBody.find('td').slice(0, -1); // exclude gutter
        dayBodyCellInners = dayBodyCells.find('> div');
        dayBodyCellContentInners = dayBodyCells.find('.fc-day-content > div');

        dayBodyFirstCell = dayBodyCells.eq(0);
        dayBodyFirstCellStretcher = dayBodyCellInners.eq(0);

        markFirstLast(dayHead.add(dayHead.find('tr')));
        markFirstLast(dayBody.add(dayBody.find('tr')));

        // TODO: now that we rebuild the cells every time, we should call dayRender
}

function buildDayTableHTML() {
        var html =
                "<table style='width:100%' class='fc-agenda-days fc-border-separate' cellspacing='0'>" +
                buildDayTableHeadHTML() +
                buildDayTableBodyHTML() +
                "</table>";

        return html;
}

function buildDayTableHeadHTML() {
        var headerClass = tm + "-widget-header";
        var date;
        var html = '';
        var weekText;
        var col;

        html +=
                "<thead>" +
                "<tr>";

        if (showWeekNumbers) {
                date = cellToDate(0, 0);
                weekText = formatDate(date, weekNumberFormat);
                if (rtl) {
                        weekText += weekNumberTitle;
                }
                else {
                        weekText = weekNumberTitle + weekText;
                }
                html +=
                        "<th class='fc-agenda-axis fc-week-number " + headerClass + "'>" +
                        htmlEscape(weekText) +
                        "</th>";
        }
        else {
                html += "<th class='fc-agenda-axis " + headerClass + "'>&nbsp;</th>";
        }

        for (col=0; col<colCnt; col++) {
                date = cellToDate(0, col);
                html +=
                        "<th class='fc-" + dayIDs[date.getDay()] + " fc-col" + col + ' ' + headerClass + "'>" +
                        htmlEscape(formatDate(date, colFormat)) +
                        "</th>";
        }

        html +=
                "<th class='fc-agenda-gutter " + headerClass + "'>&nbsp;</th>" +
                "</tr>" +
                "</thead>";

        return html;
}

function buildDayTableBodyHTML() {
        var headerClass = tm + "-widget-header"; // TODO: make these when updateOptions() called
        var contentClass = tm + "-widget-content";
        var date;
        var today = clearTime(new Date());
        var col;
        var cellsHTML;
        var cellHTML;
        var classNames;
        var html = '';

        html +=
                "<tbody>" +
                "<tr>" +
                "<th class='fc-agenda-axis " + headerClass + "'>&nbsp;</th>";

        cellsHTML = '';

        for (col=0; col<colCnt; col++) {

                date = cellToDate(0, col);

                classNames = [
                        'fc-col' + col,
                        'fc-' + dayIDs[date.getDay()],
                        contentClass
                ];
                if (+date == +today) {
                        classNames.push(
                                tm + '-state-highlight',
                                'fc-today'
                        );
                }
                else if (date < today) {
                        classNames.push('fc-past');
                }
                else {
                        classNames.push('fc-future');
                }

                cellHTML =
                        "<td class='" + classNames.join(' ') + "'>" +
                        "<div>" +
                        "<div class='fc-day-content'>" +
                        "<div style='position:relative'>&nbsp;</div>" +
                        "</div>" +
                        "</div>" +
                        "</td>";

                cellsHTML += cellHTML;
        }

        html += cellsHTML;
        html +=
                "<td class='fc-agenda-gutter " + contentClass + "'>&nbsp;</td>" +
                "</tr>" +
                "</tbody>";

        return html;
}

// TODO: data-date on the cells

/* Dimensions
-----------------------------------------------------------------------*/

function setHeight(height) {
        if (height === undefined) {
                height = viewHeight;
        }
        viewHeight = height;
        slotTopCache = {};

        var headHeight = dayBody.position().top;
        var allDayHeight = slotScroller.position().top; // including divider
        var bodyHeight = Math.min( // total body height, including borders
                height - headHeight,   // when scrollbars
                slotTable.height() + allDayHeight + 1 // when no scrollbars. +1 for bottom border
        );

        dayBodyFirstCellStretcher
                .height(bodyHeight - vsides(dayBodyFirstCell));

        slotLayer.css('top', headHeight);

        slotScroller.height(bodyHeight - allDayHeight - 1);

        // the stylesheet guarantees that the first row has no border.
        // this allows .height() to work well cross-browser.
        slotHeight = slotTable.find('tr:first').height() + 1; // +1 for bottom border

        snapRatio = opt('slotMinutes') / snapMinutes;
        snapHeight = slotHeight / snapRatio;
}

function setWidth(width) {
        viewWidth = width;
        colPositions.clear();
        colContentPositions.clear();

        var axisFirstCells = dayHead.find('th:first');
        if (allDayTable) {
                axisFirstCells = axisFirstCells.add(allDayTable.find('th:first'));
        }
        axisFirstCells = axisFirstCells.add(slotTable.find('th:first'));

        axisWidth = 0;
        setOuterWidth(
                axisFirstCells
                        .width('')
                        .each(function(i, _cell) {
                                axisWidth = Math.max(axisWidth, $(_cell).outerWidth());
                        }),
                axisWidth
        );

        var gutterCells = dayTable.find('.fc-agenda-gutter');
        if (allDayTable) {
                gutterCells = gutterCells.add(allDayTable.find('th.fc-agenda-gutter'));
        }

        var slotTableWidth = slotScroller[0].clientWidth; // needs to be done after axisWidth (for IE7)

        gutterWidth = slotScroller.width() - slotTableWidth;
        if (gutterWidth) {
                setOuterWidth(gutterCells, gutterWidth);
                gutterCells
                        .show()
                        .prev()
                        .removeClass('fc-last');
        }else{
                gutterCells
                        .hide()
                        .prev()
                        .addClass('fc-last');
        }

        colWidth = Math.floor((slotTableWidth - axisWidth) / colCnt);
        setOuterWidth(dayHeadCells.slice(0, -1), colWidth);
}

/* Scrolling
-----------------------------------------------------------------------*/

function resetScroll() {
        var d0 = zeroDate();
        var scrollDate = cloneDate(d0);
        scrollDate.setHours(opt('firstHour'));
        var top = timePosition(d0, scrollDate) + 1; // +1 for the border
        function scroll() {
                slotScroller.scrollTop(top);
        }
        scroll();
        setTimeout(scroll, 0); // overrides any previous scroll state made by the browser
}

function afterRender() { // after the view has been freshly rendered and sized
        resetScroll();
}

/* Slot/Day clicking and binding
-----------------------------------------------------------------------*/

function dayBind(cells) {
        cells.click(slotClick)
                .mousedown(daySelectionMousedown);
}

function slotBind(cells) {
        cells.click(slotClick)
                .mousedown(slotSelectionMousedown);
}

function slotClick(ev) {
        if (!opt('selectable')) { // if selectable, SelectionManager will worry about dayClick
                var col = Math.min(colCnt-1, Math.floor((ev.pageX - dayTable.offset().left - axisWidth) / colWidth));
                var date = cellToDate(0, col);
                var rowMatch = this.parentNode.className.match(/fc-slot(\d+)/); // TODO: maybe use data
                if (rowMatch) {
                        var mins = parseInt(rowMatch[1]) * opt('slotMinutes');
                        var hours = Math.floor(mins/60);
                        date.setHours(hours);
                        date.setMinutes(mins%60 + minMinute);
                        trigger('dayClick', dayBodyCells[col], date, false, ev);
                }else{
                        trigger('dayClick', dayBodyCells[col], date, true, ev);
                }
        }
}

/* Semi-transparent Overlay Helpers
-----------------------------------------------------*/
// TODO: should be consolidated with BasicView's methods

function renderDayOverlay(overlayStart, overlayEnd, refreshCoordinateGrid) { // overlayEnd is exclusive

        if (refreshCoordinateGrid) {
                coordinateGrid.build();
        }

        var segments = rangeToSegments(overlayStart, overlayEnd);

        for (var i=0; i<segments.length; i++) {
                var segment = segments[i];
                dayBind(
                        renderCellOverlay(
                                segment.row,
                                segment.leftCol,
                                segment.row,
                                segment.rightCol
                        )
                );
        }
}

function renderCellOverlay(row0, col0, row1, col1) { // only for all-day?
        var rect = coordinateGrid.rect(row0, col0, row1, col1, slotLayer);
        return renderOverlay(rect, slotLayer);
}

function renderSlotOverlay(overlayStart, overlayEnd) {
        for (var i=0; i<colCnt; i++) {
                var dayStart = cellToDate(0, i);
                var dayEnd = addDays(cloneDate(dayStart), 1);
                var stretchStart = new Date(Math.max(dayStart, overlayStart));
                var stretchEnd = new Date(Math.min(dayEnd, overlayEnd));
                if (stretchStart < stretchEnd) {
                        var rect = coordinateGrid.rect(0, i, 0, i, slotContainer); // only use it for horizontal coords
                        var top = timePosition(dayStart, stretchStart);
                        var bottom = timePosition(dayStart, stretchEnd);
                        rect.top = top;
                        rect.height = bottom - top;
                        slotBind(
                                renderOverlay(rect, slotContainer)
                        );
                }
        }
}

/* Coordinate Utilities
-----------------------------------------------------------------------------*/

coordinateGrid = new CoordinateGrid(function(rows, cols) {
        var e, n, p;
        dayHeadCells.each(function(i, _e) {
                e = $(_e);
                n = e.offset().left;
                if (i) {
                        p[1] = n;
                }
                p = [n];
                cols[i] = p;
        });
        p[1] = n + e.outerWidth();
        if (opt('allDaySlot')) {
                e = allDayRow;
                n = e.offset().top;
                rows[0] = [n, n+e.outerHeight()];
        }
        var slotTableTop = slotContainer.offset().top;
        var slotScrollerTop = slotScroller.offset().top;
        var slotScrollerBottom = slotScrollerTop + slotScroller.outerHeight();
        function constrain(n) {
                return Math.max(slotScrollerTop, Math.min(slotScrollerBottom, n));
        }
        for (var i=0; i<slotCnt*snapRatio; i++) { // adapt slot count to increased/decreased selection slot count
                rows.push([
                        constrain(slotTableTop + snapHeight*i),
                        constrain(slotTableTop + snapHeight*(i+1))
                ]);
        }
});

hoverListener = new HoverListener(coordinateGrid);

colPositions = new HorizontalPositionCache(function(col) {
        return dayBodyCellInners.eq(col);
});

colContentPositions = new HorizontalPositionCache(function(col) {
        return dayBodyCellContentInners.eq(col);
});

function colLeft(col) {
        return colPositions.left(col);
}

function colContentLeft(col) {
        return colContentPositions.left(col);
}

function colRight(col) {
        return colPositions.right(col);
}

function colContentRight(col) {
        return colContentPositions.right(col);
}

function getIsCellAllDay(cell) {
        return opt('allDaySlot') && !cell.row;
}

function realCellToDate(cell) { // ugh "real" ... but blame it on our abuse of the "cell" system
        var d = cellToDate(0, cell.col);
        var slotIndex = cell.row;
        if (opt('allDaySlot')) {
                slotIndex--;
        }
        if (slotIndex >= 0) {
                addMinutes(d, minMinute + slotIndex * snapMinutes);
        }
        return d;
}

// get the Y coordinate of the given time on the given day (both Date objects)
function timePosition(day, time) { // both date objects. day holds 00:00 of current day
        day = cloneDate(day, true);
        if (time < addMinutes(cloneDate(day), minMinute)) {
                return 0;
        }
        if (time >= addMinutes(cloneDate(day), maxMinute)) {
                return slotTable.height();
        }
        var slotMinutes = opt('slotMinutes'),
                minutes = time.getHours()*60 + time.getMinutes() - minMinute,
                slotI = Math.floor(minutes / slotMinutes),
                slotTop = slotTopCache[slotI];
        if (slotTop === undefined) {
                slotTop = slotTopCache[slotI] =
                        slotTable.find('tr').eq(slotI).find('td div')[0].offsetTop;
                        // .eq() is faster than ":eq()" selector
                        // [0].offsetTop is faster than .position().top (do we really need this optimization?)
                        // a better optimization would be to cache all these divs
        }
        return Math.max(0, Math.round(
                slotTop - 1 + slotHeight * ((minutes % slotMinutes) / slotMinutes)
        ));
}

function getAllDayRow(index) {
        return allDayRow;
}

function defaultEventEnd(event) {
        var start = cloneDate(event.start);
        if (event.allDay) {
                return start;
        }
        return addMinutes(start, opt('defaultEventMinutes'));
}

/* Selection
---------------------------------------------------------------------------------*/

function defaultSelectionEnd(startDate, allDay) {
        if (allDay) {
                return cloneDate(startDate);
        }
        return addMinutes(cloneDate(startDate), opt('slotMinutes'));
}

function renderSelection(startDate, endDate, allDay) { // only for all-day
        if (allDay) {
                if (opt('allDaySlot')) {
                        renderDayOverlay(startDate, addDays(cloneDate(endDate), 1), true);
                }
        }else{
                renderSlotSelection(startDate, endDate);
        }
}

function renderSlotSelection(startDate, endDate) {
        var helperOption = opt('selectHelper');
        coordinateGrid.build();
        if (helperOption) {
                var col = dateToCell(startDate).col;
                if (col >= 0 && col < colCnt) { // only works when times are on same day
                        var rect = coordinateGrid.rect(0, col, 0, col, slotContainer); // only for horizontal coords
                        var top = timePosition(startDate, startDate);
                        var bottom = timePosition(startDate, endDate);
                        if (bottom > top) { // protect against selections that are entirely before or after visible range
                                rect.top = top;
                                rect.height = bottom - top;
                                rect.left += 2;
                                rect.width -= 5;
                                if ($.isFunction(helperOption)) {
                                        var helperRes = helperOption(startDate, endDate);
                                        if (helperRes) {
                                                rect.position = 'absolute';
                                                selectionHelper = $(helperRes)
                                                        .css(rect)
                                                        .appendTo(slotContainer);
                                        }
                                }else{
                                        rect.isStart = true; // conside rect a "seg" now
                                        rect.isEnd = true;   //
                                        selectionHelper = $(slotSegHtml(
                                                {
                                                        title: '',
                                                        start: startDate,
                                                        end: endDate,
                                                        className: ['fc-select-helper'],
                                                        editable: false
                                                },
                                                rect
                                        ));
                                        selectionHelper.css('opacity', opt('dragOpacity'));
                                }
                                if (selectionHelper) {
                                        slotBind(selectionHelper);
                                        slotContainer.append(selectionHelper);
                                        setOuterWidth(selectionHelper, rect.width, true); // needs to be after appended
                                        setOuterHeight(selectionHelper, rect.height, true);
                                }
                        }
                }
        }else{
                renderSlotOverlay(startDate, endDate);
        }
}

function clearSelection() {
        clearOverlays();
        if (selectionHelper) {
                selectionHelper.remove();
                selectionHelper = null;
        }
}

function slotSelectionMousedown(ev) {
        if (ev.which == 1 && opt('selectable')) { // ev.which==1 means left mouse button
                unselect(ev);
                var dates;
                hoverListener.start(function(cell, origCell) {
                        clearSelection();
                        if (cell && cell.col == origCell.col && !getIsCellAllDay(cell)) {
                                var d1 = realCellToDate(origCell);
                                var d2 = realCellToDate(cell);
                                dates = [
                                        d1,
                                        addMinutes(cloneDate(d1), snapMinutes), // calculate minutes depending on selection slot minutes 
                                        d2,
                                        addMinutes(cloneDate(d2), snapMinutes)
                                ].sort(dateCompare);
                                renderSlotSelection(dates[0], dates[3]);
                        }else{
                                dates = null;
                        }
                }, ev);
                $(document).one('mouseup', function(ev) {
                        hoverListener.stop();
                        if (dates) {
                                if (+dates[0] == +dates[1]) {
                                        reportDayClick(dates[0], false, ev);
                                }
                                reportSelection(dates[0], dates[3], false, ev);
                        }
                });
        }
}

function reportDayClick(date, allDay, ev) {
        trigger('dayClick', dayBodyCells[dateToCell(date).col], date, allDay, ev);
}

/* External Dragging
--------------------------------------------------------------------------------*/

function dragStart(_dragElement, ev, ui) {
        hoverListener.start(function(cell) {
                clearOverlays();
                if (cell) {
                        if (getIsCellAllDay(cell)) {
                                renderCellOverlay(cell.row, cell.col, cell.row, cell.col);
                        }else{
                                var d1 = realCellToDate(cell);
                                var d2 = addMinutes(cloneDate(d1), opt('defaultEventMinutes'));
                                renderSlotOverlay(d1, d2);
                        }
                }
        }, ev);
}

function dragStop(_dragElement, ev, ui) {
        var cell = hoverListener.stop();
        clearOverlays();
        if (cell) {
                trigger('drop', _dragElement, realCellToDate(cell), getIsCellAllDay(cell), ev, ui);
        }
}

}

;;

function AgendaEventRenderer() {

var t = this;

// exports
t.renderEvents = renderEvents;
t.clearEvents = clearEvents;
t.slotSegHtml = slotSegHtml;

// imports
DayEventRenderer.call(t);
var opt = t.opt;
var trigger = t.trigger;
var isEventDraggable = t.isEventDraggable;
var isEventResizable = t.isEventResizable;
var eventEnd = t.eventEnd;
var eventElementHandlers = t.eventElementHandlers;
var setHeight = t.setHeight;
var getDaySegmentContainer = t.getDaySegmentContainer;
var getSlotSegmentContainer = t.getSlotSegmentContainer;
var getHoverListener = t.getHoverListener;
var getMaxMinute = t.getMaxMinute;
var getMinMinute = t.getMinMinute;
var timePosition = t.timePosition;
var getIsCellAllDay = t.getIsCellAllDay;
var colContentLeft = t.colContentLeft;
var colContentRight = t.colContentRight;
var cellToDate = t.cellToDate;
var getColCnt = t.getColCnt;
var getColWidth = t.getColWidth;
var getSnapHeight = t.getSnapHeight;
var getSnapMinutes = t.getSnapMinutes;
var getSlotContainer = t.getSlotContainer;
var reportEventElement = t.reportEventElement;
var showEvents = t.showEvents;
var hideEvents = t.hideEvents;
var eventDrop = t.eventDrop;
var eventResize = t.eventResize;
var renderDayOverlay = t.renderDayOverlay;
var clearOverlays = t.clearOverlays;
var renderDayEvents = t.renderDayEvents;
var calendar = t.calendar;
var formatDate = calendar.formatDate;
var formatDates = calendar.formatDates;

// overrides
t.draggableDayEvent = draggableDayEvent;

/* Rendering
----------------------------------------------------------------------------*/

function renderEvents(events, modifiedEventId) {
        var i, len=events.length,
                dayEvents=[],
                slotEvents=[];
        for (i=0; i<len; i++) {
                if (events[i].allDay) {
                        dayEvents.push(events[i]);
                }else{
                        slotEvents.push(events[i]);
                }
        }

        if (opt('allDaySlot')) {
                renderDayEvents(dayEvents, modifiedEventId);
                setHeight(); // no params means set to viewHeight
        }

        renderSlotSegs(compileSlotSegs(slotEvents), modifiedEventId);
}

function clearEvents() {
        getDaySegmentContainer().empty();
        getSlotSegmentContainer().empty();
}

function compileSlotSegs(events) {
        var colCnt = getColCnt(),
                minMinute = getMinMinute(),
                maxMinute = getMaxMinute(),
                d,
                visEventEnds = $.map(events, slotEventEnd),
                i,
                j, seg,
                colSegs,
                segs = [];

        for (i=0; i<colCnt; i++) {

                d = cellToDate(0, i);
                addMinutes(d, minMinute);

                colSegs = sliceSegs(
                        events,
                        visEventEnds,
                        d,
                        addMinutes(cloneDate(d), maxMinute-minMinute)
                );

                colSegs = placeSlotSegs(colSegs); // returns a new order

                for (j=0; j<colSegs.length; j++) {
                        seg = colSegs[j];
                        seg.col = i;
                        segs.push(seg);
                }
        }

        return segs;
}

function sliceSegs(events, visEventEnds, start, end) {
        var segs = [],
                i, len=events.length, event,
                eventStart, eventEnd,
                segStart, segEnd,
                isStart, isEnd;
        for (i=0; i<len; i++) {
                event = events[i];
                eventStart = event.start;
                eventEnd = visEventEnds[i];
                if (eventEnd > start && eventStart < end) {
                        if (eventStart < start) {
                                segStart = cloneDate(start);
                                isStart = false;
                        }else{
                                segStart = eventStart;
                                isStart = true;
                        }
                        if (eventEnd > end) {
                                segEnd = cloneDate(end);
                                isEnd = false;
                        }else{
                                segEnd = eventEnd;
                                isEnd = true;
                        }
                        segs.push({
                                event: event,
                                start: segStart,
                                end: segEnd,
                                isStart: isStart,
                                isEnd: isEnd
                        });
                }
        }
        return segs.sort(compareSlotSegs);
}

function slotEventEnd(event) {
        if (event.end) {
                return cloneDate(event.end);
        }else{
                return addMinutes(cloneDate(event.start), opt('defaultEventMinutes'));
        }
}

// renders events in the 'time slots' at the bottom
// TODO: when we refactor this, when user returns `false` eventRender, don't have empty space
// TODO: refactor will include using pixels to detect collisions instead of dates (handy for seg cmp)

function renderSlotSegs(segs, modifiedEventId) {

        var i, segCnt=segs.length, seg,
                event,
                top,
                bottom,
                columnLeft,
                columnRight,
                columnWidth,
                width,
                left,
                right,
                html = '',
                eventElements,
                eventElement,
                triggerRes,
                titleElement,
                height,
                slotSegmentContainer = getSlotSegmentContainer(),
                isRTL = opt('isRTL');

        // calculate position/dimensions, create html
        for (i=0; i<segCnt; i++) {
                seg = segs[i];
                event = seg.event;
                top = timePosition(seg.start, seg.start);
                bottom = timePosition(seg.start, seg.end);
                columnLeft = colContentLeft(seg.col);
                columnRight = colContentRight(seg.col);
                columnWidth = columnRight - columnLeft;

                // shave off space on right near scrollbars (2.5%)
                // TODO: move this to CSS somehow
                columnRight -= columnWidth * .025;
                columnWidth = columnRight - columnLeft;

                width = columnWidth * (seg.forwardCoord - seg.backwardCoord);

                if (opt('slotEventOverlap')) {
                        // double the width while making sure resize handle is visible
                        // (assumed to be 20px wide)
                        width = Math.max(
                                (width - (20/2)) * 2,
                                width // narrow columns will want to make the segment smaller than
                                        // the natural width. don't allow it
                        );
                }

                if (isRTL) {
                        right = columnRight - seg.backwardCoord * columnWidth;
                        left = right - width;
                }
                else {
                        left = columnLeft + seg.backwardCoord * columnWidth;
                        right = left + width;
                }

                // make sure horizontal coordinates are in bounds
                left = Math.max(left, columnLeft);
                right = Math.min(right, columnRight);
                width = right - left;

                seg.top = top;
                seg.left = left;
                seg.outerWidth = width;
                seg.outerHeight = bottom - top;
                html += slotSegHtml(event, seg);
        }

        slotSegmentContainer[0].innerHTML = html; // faster than html()
        eventElements = slotSegmentContainer.children();

        // retrieve elements, run through eventRender callback, bind event handlers
        for (i=0; i<segCnt; i++) {
                seg = segs[i];
                event = seg.event;
                eventElement = $(eventElements[i]); // faster than eq()
                triggerRes = trigger('eventRender', event, event, eventElement);
                if (triggerRes === false) {
                        eventElement.remove();
                }else{
                        if (triggerRes && triggerRes !== true) {
                                eventElement.remove();
                                eventElement = $(triggerRes)
                                        .css({
                                                position: 'absolute',
                                                top: seg.top,
                                                left: seg.left
                                        })
                                        .appendTo(slotSegmentContainer);
                        }
                        seg.element = eventElement;
                        if (event._id === modifiedEventId) {
                                bindSlotSeg(event, eventElement, seg);
                        }else{
                                eventElement[0]._fci = i; // for lazySegBind
                        }
                        reportEventElement(event, eventElement);
                }
        }

        lazySegBind(slotSegmentContainer, segs, bindSlotSeg);

        // record event sides and title positions
        for (i=0; i<segCnt; i++) {
                seg = segs[i];
                if (eventElement = seg.element) {
                        seg.vsides = vsides(eventElement, true);
                        seg.hsides = hsides(eventElement, true);
                        titleElement = eventElement.find('.fc-event-title');
                        if (titleElement.length) {
                                seg.contentTop = titleElement[0].offsetTop;
                        }
                }
        }

        // set all positions/dimensions at once
        for (i=0; i<segCnt; i++) {
                seg = segs[i];
                if (eventElement = seg.element) {
                        eventElement[0].style.width = Math.max(0, seg.outerWidth - seg.hsides) + 'px';
                        height = Math.max(0, seg.outerHeight - seg.vsides);
                        eventElement[0].style.height = height + 'px';
                        event = seg.event;
                        if (seg.contentTop !== undefined && height - seg.contentTop < 10) {
                                // not enough room for title, put it in the time (TODO: maybe make both display:inline instead)
                                eventElement.find('div.fc-event-time')
                                        .text(formatDate(event.start, opt('timeFormat')) + ' - ' + event.title);
                                eventElement.find('div.fc-event-title')
                                        .remove();
                        }
                        trigger('eventAfterRender', event, event, eventElement);
                }
        }

}

function slotSegHtml(event, seg) {
        var html = "<";
        var url = event.url;
        var skinCss = getSkinCss(event, opt);
        var classes = ['fc-event', 'fc-event-vert'];
        if (isEventDraggable(event)) {
                classes.push('fc-event-draggable');
        }
        if (seg.isStart) {
                classes.push('fc-event-start');
        }
        if (seg.isEnd) {
                classes.push('fc-event-end');
        }
        classes = classes.concat(event.className);
        if (event.source) {
                classes = classes.concat(event.source.className || []);
        }
        if (url) {
                html += "a href='" + htmlEscape(event.url) + "'";
        }else{
                html += "div";
        }
        html +=
                " class='" + classes.join(' ') + "'" +
                " style=" +
                        "'" +
                        "position:absolute;" +
                        "top:" + seg.top + "px;" +
                        "left:" + seg.left + "px;" +
                        skinCss +
                        "'" +
                ">" +
                "<div class='fc-event-inner'>" +
                "<div class='fc-event-time'>" +
                htmlEscape(formatDates(event.start, event.end, opt('timeFormat'))) +
                "</div>" +
                "<div class='fc-event-title'>" +
                htmlEscape(event.title || '') +
                "</div>" +
                "</div>" +
                "<div class='fc-event-bg'></div>";
        if (seg.isEnd && isEventResizable(event)) {
                html +=
                        "<div class='ui-resizable-handle ui-resizable-s'>=</div>";
        }
        html +=
                "</" + (url ? "a" : "div") + ">";
        return html;
}

function bindSlotSeg(event, eventElement, seg) {
        var timeElement = eventElement.find('div.fc-event-time');
        if (isEventDraggable(event)) {
                draggableSlotEvent(event, eventElement, timeElement);
        }
        if (seg.isEnd && isEventResizable(event)) {
                resizableSlotEvent(event, eventElement, timeElement);
        }
        eventElementHandlers(event, eventElement);
}

/* Dragging
-----------------------------------------------------------------------------------*/

// when event starts out FULL-DAY
// overrides DayEventRenderer's version because it needs to account for dragging elements
// to and from the slot area.

function draggableDayEvent(event, eventElement, seg) {
        var isStart = seg.isStart;
        var origWidth;
        var revert;
        var allDay = true;
        var dayDelta;
        var hoverListener = getHoverListener();
        var colWidth = getColWidth();
        var snapHeight = getSnapHeight();
        var snapMinutes = getSnapMinutes();
        var minMinute = getMinMinute();
        eventElement.draggable({
                opacity: opt('dragOpacity', 'month'), // use whatever the month view was using
                revertDuration: opt('dragRevertDuration'),
                start: function(ev, ui) {
                        trigger('eventDragStart', eventElement, event, ev, ui);
                        hideEvents(event, eventElement);
                        origWidth = eventElement.width();
                        hoverListener.start(function(cell, origCell) {
                                clearOverlays();
                                if (cell) {
                                        revert = false;
                                        var origDate = cellToDate(0, origCell.col);
                                        var date = cellToDate(0, cell.col);
                                        dayDelta = dayDiff(date, origDate);
                                        if (!cell.row) {
                                                // on full-days
                                                renderDayOverlay(
                                                        addDays(cloneDate(event.start), dayDelta),
                                                        addDays(exclEndDay(event), dayDelta)
                                                );
                                                resetElement();
                                        }else{
                                                // mouse is over bottom slots
                                                if (isStart) {
                                                        if (allDay) {
                                                                // convert event to temporary slot-event
                                                                eventElement.width(colWidth - 10); // don't use entire width
                                                                setOuterHeight(
                                                                        eventElement,
                                                                        snapHeight * Math.round(
                                                                                (event.end ? ((event.end - event.start) / MINUTE_MS) : opt('defaultEventMinutes')) /
                                                                                        snapMinutes
                                                                        )
                                                                );
                                                                eventElement.draggable('option', 'grid', [colWidth, 1]);
                                                                allDay = false;
                                                        }
                                                }else{
                                                        revert = true;
                                                }
                                        }
                                        revert = revert || (allDay && !dayDelta);
                                }else{
                                        resetElement();
                                        revert = true;
                                }
                                eventElement.draggable('option', 'revert', revert);
                        }, ev, 'drag');
                },
                stop: function(ev, ui) {
                        hoverListener.stop();
                        clearOverlays();
                        trigger('eventDragStop', eventElement, event, ev, ui);
                        if (revert) {
                                // hasn't moved or is out of bounds (draggable has already reverted)
                                resetElement();
                                eventElement.css('filter', ''); // clear IE opacity side-effects
                                showEvents(event, eventElement);
                        }else{
                                // changed!
                                var minuteDelta = 0;
                                if (!allDay) {
                                        minuteDelta = Math.round((eventElement.offset().top - getSlotContainer().offset().top) / snapHeight)
                                                * snapMinutes
                                                + minMinute
                                                - (event.start.getHours() * 60 + event.start.getMinutes());
                                }
                                eventDrop(this, event, dayDelta, minuteDelta, allDay, ev, ui);
                        }
                }
        });
        function resetElement() {
                if (!allDay) {
                        eventElement
                                .width(origWidth)
                                .height('')
                                .draggable('option', 'grid', null);
                        allDay = true;
                }
        }
}

// when event starts out IN TIMESLOTS

function draggableSlotEvent(event, eventElement, timeElement) {
        var coordinateGrid = t.getCoordinateGrid();
        var colCnt = getColCnt();
        var colWidth = getColWidth();
        var snapHeight = getSnapHeight();
        var snapMinutes = getSnapMinutes();

        // states
        var origPosition; // original position of the element, not the mouse
        var origCell;
        var isInBounds, prevIsInBounds;
        var isAllDay, prevIsAllDay;
        var colDelta, prevColDelta;
        var dayDelta; // derived from colDelta
        var minuteDelta, prevMinuteDelta;

        eventElement.draggable({
                scroll: false,
                grid: [ colWidth, snapHeight ],
                axis: colCnt==1 ? 'y' : false,
                opacity: opt('dragOpacity'),
                revertDuration: opt('dragRevertDuration'),
                start: function(ev, ui) {

                        trigger('eventDragStart', eventElement, event, ev, ui);
                        hideEvents(event, eventElement);

                        coordinateGrid.build();

                        // initialize states
                        origPosition = eventElement.position();
                        origCell = coordinateGrid.cell(ev.pageX, ev.pageY);
                        isInBounds = prevIsInBounds = true;
                        isAllDay = prevIsAllDay = getIsCellAllDay(origCell);
                        colDelta = prevColDelta = 0;
                        dayDelta = 0;
                        minuteDelta = prevMinuteDelta = 0;

                },
                drag: function(ev, ui) {

                        // NOTE: this `cell` value is only useful for determining in-bounds and all-day.
                        // Bad for anything else due to the discrepancy between the mouse position and the
                        // element position while snapping. (problem revealed in PR #55)
                        //
                        // PS- the problem exists for draggableDayEvent() when dragging an all-day event to a slot event.
                        // We should overhaul the dragging system and stop relying on jQuery UI.
                        var cell = coordinateGrid.cell(ev.pageX, ev.pageY);

                        // update states
                        isInBounds = !!cell;
                        if (isInBounds) {
                                isAllDay = getIsCellAllDay(cell);

                                // calculate column delta
                                colDelta = Math.round((ui.position.left - origPosition.left) / colWidth);
                                if (colDelta != prevColDelta) {
                                        // calculate the day delta based off of the original clicked column and the column delta
                                        var origDate = cellToDate(0, origCell.col);
                                        var col = origCell.col + colDelta;
                                        col = Math.max(0, col);
                                        col = Math.min(colCnt-1, col);
                                        var date = cellToDate(0, col);
                                        dayDelta = dayDiff(date, origDate);
                                }

                                // calculate minute delta (only if over slots)
                                if (!isAllDay) {
                                        minuteDelta = Math.round((ui.position.top - origPosition.top) / snapHeight) * snapMinutes;
                                }
                        }

                        // any state changes?
                        if (
                                isInBounds != prevIsInBounds ||
                                isAllDay != prevIsAllDay ||
                                colDelta != prevColDelta ||
                                minuteDelta != prevMinuteDelta
                        ) {

                                updateUI();

                                // update previous states for next time
                                prevIsInBounds = isInBounds;
                                prevIsAllDay = isAllDay;
                                prevColDelta = colDelta;
                                prevMinuteDelta = minuteDelta;
                        }

                        // if out-of-bounds, revert when done, and vice versa.
                        eventElement.draggable('option', 'revert', !isInBounds);

                },
                stop: function(ev, ui) {

                        clearOverlays();
                        trigger('eventDragStop', eventElement, event, ev, ui);

                        if (isInBounds && (isAllDay || dayDelta || minuteDelta)) { // changed!
                                eventDrop(this, event, dayDelta, isAllDay ? 0 : minuteDelta, isAllDay, ev, ui);
                        }
                        else { // either no change or out-of-bounds (draggable has already reverted)

                                // reset states for next time, and for updateUI()
                                isInBounds = true;
                                isAllDay = false;
                                colDelta = 0;
                                dayDelta = 0;
                                minuteDelta = 0;

                                updateUI();
                                eventElement.css('filter', ''); // clear IE opacity side-effects

                                // sometimes fast drags make event revert to wrong position, so reset.
                                // also, if we dragged the element out of the area because of snapping,
                                // but the *mouse* is still in bounds, we need to reset the position.
                                eventElement.css(origPosition);

                                showEvents(event, eventElement);
                        }
                }
        });

        function updateUI() {
                clearOverlays();
                if (isInBounds) {
                        if (isAllDay) {
                                timeElement.hide();
                                eventElement.draggable('option', 'grid', null); // disable grid snapping
                                renderDayOverlay(
                                        addDays(cloneDate(event.start), dayDelta),
                                        addDays(exclEndDay(event), dayDelta)
                                );
                        }
                        else {
                                updateTimeText(minuteDelta);
                                timeElement.css('display', ''); // show() was causing display=inline
                                eventElement.draggable('option', 'grid', [colWidth, snapHeight]); // re-enable grid snapping
                        }
                }
        }

        function updateTimeText(minuteDelta) {
                var newStart = addMinutes(cloneDate(event.start), minuteDelta);
                var newEnd;
                if (event.end) {
                        newEnd = addMinutes(cloneDate(event.end), minuteDelta);
                }
                timeElement.text(formatDates(newStart, newEnd, opt('timeFormat')));
        }

}

/* Resizing
--------------------------------------------------------------------------------------*/

function resizableSlotEvent(event, eventElement, timeElement) {
        var snapDelta, prevSnapDelta;
        var snapHeight = getSnapHeight();
        var snapMinutes = getSnapMinutes();
        eventElement.resizable({
                handles: {
                        s: '.ui-resizable-handle'
                },
                grid: snapHeight,
                start: function(ev, ui) {
                        snapDelta = prevSnapDelta = 0;
                        hideEvents(event, eventElement);
                        trigger('eventResizeStart', this, event, ev, ui);
                },
                resize: function(ev, ui) {
                        // don't rely on ui.size.height, doesn't take grid into account
                        snapDelta = Math.round((Math.max(snapHeight, eventElement.height()) - ui.originalSize.height) / snapHeight);
                        if (snapDelta != prevSnapDelta) {
                                timeElement.text(
                                        formatDates(
                                                event.start,
                                                (!snapDelta && !event.end) ? null : // no change, so don't display time range
                                                        addMinutes(eventEnd(event), snapMinutes*snapDelta),
                                                opt('timeFormat')
                                        )
                                );
                                prevSnapDelta = snapDelta;
                        }
                },
                stop: function(ev, ui) {
                        trigger('eventResizeStop', this, event, ev, ui);
                        if (snapDelta) {
                                eventResize(this, event, 0, snapMinutes*snapDelta, ev, ui);
                        }else{
                                showEvents(event, eventElement);
                                // BUG: if event was really short, need to put title back in span
                        }
                }
        });
}

}

/* Agenda Event Segment Utilities —————————————————————————–*/

// Sets the seg.backwardCoord and seg.forwardCoord on each segment and returns a new // list in the order they should be placed into the DOM (an implicit z-index). function placeSlotSegs(segs) {

var levels = buildSlotSegLevels(segs);
var level0 = levels[0];
var i;

computeForwardSlotSegs(levels);

if (level0) {

        for (i=0; i<level0.length; i++) {
                computeSlotSegPressures(level0[i]);
        }

        for (i=0; i<level0.length; i++) {
                computeSlotSegCoords(level0[i], 0, 0);
        }
}

return flattenSlotSegLevels(levels);

}

// Builds an array of segments “levels”. The first level will be the leftmost tier of segments // if the calendar is left-to-right, or the rightmost if the calendar is right-to-left. function buildSlotSegLevels(segs) {

var levels = [];
var i, seg;
var j;

for (i=0; i<segs.length; i++) {
        seg = segs[i];

        // go through all the levels and stop on the first level where there are no collisions
        for (j=0; j<levels.length; j++) {
                if (!computeSlotSegCollisions(seg, levels[j]).length) {
                        break;
                }
        }

        (levels[j] || (levels[j] = [])).push(seg);
}

return levels;

}

// For every segment, figure out the other segments that are in subsequent // levels that also occupy the same vertical space. Accumulate in seg.forwardSegs function computeForwardSlotSegs(levels) {

var i, level;
var j, seg;
var k;

for (i=0; i<levels.length; i++) {
        level = levels[i];

        for (j=0; j<level.length; j++) {
                seg = level[j];

                seg.forwardSegs = [];
                for (k=i+1; k<levels.length; k++) {
                        computeSlotSegCollisions(seg, levels[k], seg.forwardSegs);
                }
        }
}

}

// Figure out which path forward (via seg.forwardSegs) results in the longest path until // the furthest edge is reached. The number of segments in this path will be seg.forwardPressure function computeSlotSegPressures(seg) {

var forwardSegs = seg.forwardSegs;
var forwardPressure = 0;
var i, forwardSeg;

if (seg.forwardPressure === undefined) { // not already computed

        for (i=0; i<forwardSegs.length; i++) {
                forwardSeg = forwardSegs[i];

                // figure out the child's maximum forward path
                computeSlotSegPressures(forwardSeg);

                // either use the existing maximum, or use the child's forward pressure
                // plus one (for the forwardSeg itself)
                forwardPressure = Math.max(
                        forwardPressure,
                        1 + forwardSeg.forwardPressure
                );
        }

        seg.forwardPressure = forwardPressure;
}

}

// Calculate seg.forwardCoord and seg.backwardCoord for the segment, where both values range // from 0 to 1. If the calendar is left-to-right, the seg.backwardCoord maps to “left” and // seg.forwardCoord maps to “right” (via percentage). Vice-versa if the calendar is right-to-left. // // The segment might be part of a “series”, which means consecutive segments with the same pressure // who’s width is unknown until an edge has been hit. ‘seriesBackwardPressure` is the number of // segments behind this one in the current series, and `seriesBackwardCoord` is the starting // coordinate of the first segment in the series. function computeSlotSegCoords(seg, seriesBackwardPressure, seriesBackwardCoord) {

var forwardSegs = seg.forwardSegs;
var i;

if (seg.forwardCoord === undefined) { // not already computed

        if (!forwardSegs.length) {

                // if there are no forward segments, this segment should butt up against the edge
                seg.forwardCoord = 1;
        }
        else {

                // sort highest pressure first
                forwardSegs.sort(compareForwardSlotSegs);

                // this segment's forwardCoord will be calculated from the backwardCoord of the
                // highest-pressure forward segment.
                computeSlotSegCoords(forwardSegs[0], seriesBackwardPressure + 1, seriesBackwardCoord);
                seg.forwardCoord = forwardSegs[0].backwardCoord;
        }

        // calculate the backwardCoord from the forwardCoord. consider the series
        seg.backwardCoord = seg.forwardCoord -
                (seg.forwardCoord - seriesBackwardCoord) / // available width for series
                (seriesBackwardPressure + 1); // # of segments in the series

        // use this segment's coordinates to computed the coordinates of the less-pressurized
        // forward segments
        for (i=0; i<forwardSegs.length; i++) {
                computeSlotSegCoords(forwardSegs[i], 0, seg.forwardCoord);
        }
}

}

// Outputs a flat array of segments, from lowest to highest level function flattenSlotSegLevels(levels) {

var segs = [];
var i, level;
var j;

for (i=0; i<levels.length; i++) {
        level = levels[i];

        for (j=0; j<level.length; j++) {
                segs.push(level[j]);
        }
}

return segs;

}

// Find all the segments in ‘otherSegs` that vertically collide with `seg`. // Append into an optionally-supplied `results` array and return. function computeSlotSegCollisions(seg, otherSegs, results) {

results = results || [];

for (var i=0; i<otherSegs.length; i++) {
        if (isSlotSegCollision(seg, otherSegs[i])) {
                results.push(otherSegs[i]);
        }
}

return results;

}

// Do these segments occupy the same vertical space? function isSlotSegCollision(seg1, seg2) {

return seg1.end > seg2.start && seg1.start < seg2.end;

}

// A cmp function for determining which forward segment to rely on more when computing coordinates. function compareForwardSlotSegs(seg1, seg2) {

// put higher-pressure first
return seg2.forwardPressure - seg1.forwardPressure ||
        // put segments that are closer to initial edge first (and favor ones with no coords yet)
        (seg1.backwardCoord || 0) - (seg2.backwardCoord || 0) ||
        // do normal sorting...
        compareSlotSegs(seg1, seg2);

}

// A cmp function for determining which segment should be closer to the initial edge // (the left edge on a left-to-right calendar). function compareSlotSegs(seg1, seg2) {

return seg1.start - seg2.start || // earlier start time goes first
        (seg2.end - seg2.start) - (seg1.end - seg1.start) || // tie? longer-duration goes first
        (seg1.event.title || '').localeCompare(seg2.event.title); // tie? alphabetically by title

}

;;

function View(element, calendar, viewName) {

var t = this;

// exports
t.element = element;
t.calendar = calendar;
t.name = viewName;
t.opt = opt;
t.trigger = trigger;
t.isEventDraggable = isEventDraggable;
t.isEventResizable = isEventResizable;
t.setEventData = setEventData;
t.clearEventData = clearEventData;
t.eventEnd = eventEnd;
t.reportEventElement = reportEventElement;
t.triggerEventDestroy = triggerEventDestroy;
t.eventElementHandlers = eventElementHandlers;
t.showEvents = showEvents;
t.hideEvents = hideEvents;
t.eventDrop = eventDrop;
t.eventResize = eventResize;
// t.title
// t.start, t.end
// t.visStart, t.visEnd

// imports
var defaultEventEnd = t.defaultEventEnd;
var normalizeEvent = calendar.normalizeEvent; // in EventManager
var reportEventChange = calendar.reportEventChange;

// locals
var eventsByID = {}; // eventID mapped to array of events (there can be multiple b/c of repeating events)
var eventElementsByID = {}; // eventID mapped to array of jQuery elements
var eventElementCouples = []; // array of objects, { event, element } // TODO: unify with segment system
var options = calendar.options;

function opt(name, viewNameOverride) {
        var v = options[name];
        if ($.isPlainObject(v)) {
                return smartProperty(v, viewNameOverride || viewName);
        }
        return v;
}

function trigger(name, thisObj) {
        return calendar.trigger.apply(
                calendar,
                [name, thisObj || t].concat(Array.prototype.slice.call(arguments, 2), [t])
        );
}

/* Event Editable Boolean Calculations
------------------------------------------------------------------------------*/

function isEventDraggable(event) {
        var source = event.source || {};
        return firstDefined(
                        event.startEditable,
                        source.startEditable,
                        opt('eventStartEditable'),
                        event.editable,
                        source.editable,
                        opt('editable')
                )
                && !opt('disableDragging'); // deprecated
}

function isEventResizable(event) { // but also need to make sure the seg.isEnd == true
        var source = event.source || {};
        return firstDefined(
                        event.durationEditable,
                        source.durationEditable,
                        opt('eventDurationEditable'),
                        event.editable,
                        source.editable,
                        opt('editable')
                )
                && !opt('disableResizing'); // deprecated
}

/* Event Data
------------------------------------------------------------------------------*/

function setEventData(events) { // events are already normalized at this point
        eventsByID = {};
        var i, len=events.length, event;
        for (i=0; i<len; i++) {
                event = events[i];
                if (eventsByID[event._id]) {
                        eventsByID[event._id].push(event);
                }else{
                        eventsByID[event._id] = [event];
                }
        }
}

function clearEventData() {
        eventsByID = {};
        eventElementsByID = {};
        eventElementCouples = [];
}

// returns a Date object for an event's end
function eventEnd(event) {
        return event.end ? cloneDate(event.end) : defaultEventEnd(event);
}

/* Event Elements
------------------------------------------------------------------------------*/

// report when view creates an element for an event
function reportEventElement(event, element) {
        eventElementCouples.push({ event: event, element: element });
        if (eventElementsByID[event._id]) {
                eventElementsByID[event._id].push(element);
        }else{
                eventElementsByID[event._id] = [element];
        }
}

function triggerEventDestroy() {
        $.each(eventElementCouples, function(i, couple) {
                t.trigger('eventDestroy', couple.event, couple.event, couple.element);
        });
}

// attaches eventClick, eventMouseover, eventMouseout
function eventElementHandlers(event, eventElement) {
        eventElement
                .click(function(ev) {
                        if (!eventElement.hasClass('ui-draggable-dragging') &&
                                !eventElement.hasClass('ui-resizable-resizing')) {
                                        return trigger('eventClick', this, event, ev);
                                }
                })
                .hover(
                        function(ev) {
                                trigger('eventMouseover', this, event, ev);
                        },
                        function(ev) {
                                trigger('eventMouseout', this, event, ev);
                        }
                );
        // TODO: don't fire eventMouseover/eventMouseout *while* dragging is occuring (on subject element)
        // TODO: same for resizing
}

function showEvents(event, exceptElement) {
        eachEventElement(event, exceptElement, 'show');
}

function hideEvents(event, exceptElement) {
        eachEventElement(event, exceptElement, 'hide');
}

function eachEventElement(event, exceptElement, funcName) {
        // NOTE: there may be multiple events per ID (repeating events)
        // and multiple segments per event
        var elements = eventElementsByID[event._id],
                i, len = elements.length;
        for (i=0; i<len; i++) {
                if (!exceptElement || elements[i][0] != exceptElement[0]) {
                        elements[i][funcName]();
                }
        }
}

/* Event Modification Reporting
---------------------------------------------------------------------------------*/

function eventDrop(e, event, dayDelta, minuteDelta, allDay, ev, ui) {
        var oldAllDay = event.allDay;
        var eventId = event._id;
        moveEvents(eventsByID[eventId], dayDelta, minuteDelta, allDay);
        trigger(
                'eventDrop',
                e,
                event,
                dayDelta,
                minuteDelta,
                allDay,
                function() {
                        // TODO: investigate cases where this inverse technique might not work
                        moveEvents(eventsByID[eventId], -dayDelta, -minuteDelta, oldAllDay);
                        reportEventChange(eventId);
                },
                ev,
                ui
        );
        reportEventChange(eventId);
}

function eventResize(e, event, dayDelta, minuteDelta, ev, ui) {
        var eventId = event._id;
        elongateEvents(eventsByID[eventId], dayDelta, minuteDelta);
        trigger(
                'eventResize',
                e,
                event,
                dayDelta,
                minuteDelta,
                function() {
                        // TODO: investigate cases where this inverse technique might not work
                        elongateEvents(eventsByID[eventId], -dayDelta, -minuteDelta);
                        reportEventChange(eventId);
                },
                ev,
                ui
        );
        reportEventChange(eventId);
}

/* Event Modification Math
---------------------------------------------------------------------------------*/

function moveEvents(events, dayDelta, minuteDelta, allDay) {
        minuteDelta = minuteDelta || 0;
        for (var e, len=events.length, i=0; i<len; i++) {
                e = events[i];
                if (allDay !== undefined) {
                        e.allDay = allDay;
                }
                addMinutes(addDays(e.start, dayDelta, true), minuteDelta);
                if (e.end) {
                        e.end = addMinutes(addDays(e.end, dayDelta, true), minuteDelta);
                }
                normalizeEvent(e, options);
        }
}

function elongateEvents(events, dayDelta, minuteDelta) {
        minuteDelta = minuteDelta || 0;
        for (var e, len=events.length, i=0; i<len; i++) {
                e = events[i];
                e.end = addMinutes(addDays(eventEnd(e), dayDelta, true), minuteDelta);
                normalizeEvent(e, options);
        }
}

// ====================================================================================================
// Utilities for day "cells"
// ====================================================================================================
// The "basic" views are completely made up of day cells.
// The "agenda" views have day cells at the top "all day" slot.
// This was the obvious common place to put these utilities, but they should be abstracted out into
// a more meaningful class (like DayEventRenderer).
// ====================================================================================================

// For determining how a given "cell" translates into a "date":
//
// 1. Convert the "cell" (row and column) into a "cell offset" (the # of the cell, cronologically from the first).
//    Keep in mind that column indices are inverted with isRTL. This is taken into account.
//
// 2. Convert the "cell offset" to a "day offset" (the # of days since the first visible day in the view).
//
// 3. Convert the "day offset" into a "date" (a JavaScript Date object).
//
// The reverse transformation happens when transforming a date into a cell.

// exports
t.isHiddenDay = isHiddenDay;
t.skipHiddenDays = skipHiddenDays;
t.getCellsPerWeek = getCellsPerWeek;
t.dateToCell = dateToCell;
t.dateToDayOffset = dateToDayOffset;
t.dayOffsetToCellOffset = dayOffsetToCellOffset;
t.cellOffsetToCell = cellOffsetToCell;
t.cellToDate = cellToDate;
t.cellToCellOffset = cellToCellOffset;
t.cellOffsetToDayOffset = cellOffsetToDayOffset;
t.dayOffsetToDate = dayOffsetToDate;
t.rangeToSegments = rangeToSegments;

// internals
var hiddenDays = opt('hiddenDays') || []; // array of day-of-week indices that are hidden
var isHiddenDayHash = []; // is the day-of-week hidden? (hash with day-of-week-index -> bool)
var cellsPerWeek;
var dayToCellMap = []; // hash from dayIndex -> cellIndex, for one week
var cellToDayMap = []; // hash from cellIndex -> dayIndex, for one week
var isRTL = opt('isRTL');

// initialize important internal variables
(function() {

        if (opt('weekends') === false) {
                hiddenDays.push(0, 6); // 0=sunday, 6=saturday
        }

        // Loop through a hypothetical week and determine which
        // days-of-week are hidden. Record in both hashes (one is the reverse of the other).
        for (var dayIndex=0, cellIndex=0; dayIndex<7; dayIndex++) {
                dayToCellMap[dayIndex] = cellIndex;
                isHiddenDayHash[dayIndex] = $.inArray(dayIndex, hiddenDays) != -1;
                if (!isHiddenDayHash[dayIndex]) {
                        cellToDayMap[cellIndex] = dayIndex;
                        cellIndex++;
                }
        }

        cellsPerWeek = cellIndex;
        if (!cellsPerWeek) {
                throw 'invalid hiddenDays'; // all days were hidden? bad.
        }

})();

// Is the current day hidden?
// `day` is a day-of-week index (0-6), or a Date object
function isHiddenDay(day) {
        if (typeof day == 'object') {
                day = day.getDay();
        }
        return isHiddenDayHash[day];
}

function getCellsPerWeek() {
        return cellsPerWeek;
}

// Keep incrementing the current day until it is no longer a hidden day.
// If the initial value of `date` is not a hidden day, don't do anything.
// Pass `isExclusive` as `true` if you are dealing with an end date.
// `inc` defaults to `1` (increment one day forward each time)
function skipHiddenDays(date, inc, isExclusive) {
        inc = inc || 1;
        while (
                isHiddenDayHash[ ( date.getDay() + (isExclusive ? inc : 0) + 7 ) % 7 ]
        ) {
                addDays(date, inc);
        }
}

//
// TRANSFORMATIONS: cell -> cell offset -> day offset -> date
//

// cell -> date (combines all transformations)
// Possible arguments:
// - row, col
// - { row:#, col: # }
function cellToDate() {
        var cellOffset = cellToCellOffset.apply(null, arguments);
        var dayOffset = cellOffsetToDayOffset(cellOffset);
        var date = dayOffsetToDate(dayOffset);
        return date;
}

// cell -> cell offset
// Possible arguments:
// - row, col
// - { row:#, col:# }
function cellToCellOffset(row, col) {
        var colCnt = t.getColCnt();

        // rtl variables. wish we could pre-populate these. but where?
        var dis = isRTL ? -1 : 1;
        var dit = isRTL ? colCnt - 1 : 0;

        if (typeof row == 'object') {
                col = row.col;
                row = row.row;
        }
        var cellOffset = row * colCnt + (col * dis + dit); // column, adjusted for RTL (dis & dit)

        return cellOffset;
}

// cell offset -> day offset
function cellOffsetToDayOffset(cellOffset) {
        var day0 = t.visStart.getDay(); // first date's day of week
        cellOffset += dayToCellMap[day0]; // normlize cellOffset to beginning-of-week
        return Math.floor(cellOffset / cellsPerWeek) * 7 // # of days from full weeks
                + cellToDayMap[ // # of days from partial last week
                        (cellOffset % cellsPerWeek + cellsPerWeek) % cellsPerWeek // crazy math to handle negative cellOffsets
                ]
                - day0; // adjustment for beginning-of-week normalization
}

// day offset -> date (JavaScript Date object)
function dayOffsetToDate(dayOffset) {
        var date = cloneDate(t.visStart);
        addDays(date, dayOffset);
        return date;
}

//
// TRANSFORMATIONS: date -> day offset -> cell offset -> cell
//

// date -> cell (combines all transformations)
function dateToCell(date) {
        var dayOffset = dateToDayOffset(date);
        var cellOffset = dayOffsetToCellOffset(dayOffset);
        var cell = cellOffsetToCell(cellOffset);
        return cell;
}

// date -> day offset
function dateToDayOffset(date) {
        return dayDiff(date, t.visStart);
}

// day offset -> cell offset
function dayOffsetToCellOffset(dayOffset) {
        var day0 = t.visStart.getDay(); // first date's day of week
        dayOffset += day0; // normalize dayOffset to beginning-of-week
        return Math.floor(dayOffset / 7) * cellsPerWeek // # of cells from full weeks
                + dayToCellMap[ // # of cells from partial last week
                        (dayOffset % 7 + 7) % 7 // crazy math to handle negative dayOffsets
                ]
                - dayToCellMap[day0]; // adjustment for beginning-of-week normalization
}

// cell offset -> cell (object with row & col keys)
function cellOffsetToCell(cellOffset) {
        var colCnt = t.getColCnt();

        // rtl variables. wish we could pre-populate these. but where?
        var dis = isRTL ? -1 : 1;
        var dit = isRTL ? colCnt - 1 : 0;

        var row = Math.floor(cellOffset / colCnt);
        var col = ((cellOffset % colCnt + colCnt) % colCnt) * dis + dit; // column, adjusted for RTL (dis & dit)
        return {
                row: row,
                col: col
        };
}

//
// Converts a date range into an array of segment objects.
// "Segments" are horizontal stretches of time, sliced up by row.
// A segment object has the following properties:
// - row
// - cols
// - isStart
// - isEnd
//
function rangeToSegments(startDate, endDate) {
        var rowCnt = t.getRowCnt();
        var colCnt = t.getColCnt();
        var segments = []; // array of segments to return

        // day offset for given date range
        var rangeDayOffsetStart = dateToDayOffset(startDate);
        var rangeDayOffsetEnd = dateToDayOffset(endDate); // exclusive

        // first and last cell offset for the given date range
        // "last" implies inclusivity
        var rangeCellOffsetFirst = dayOffsetToCellOffset(rangeDayOffsetStart);
        var rangeCellOffsetLast = dayOffsetToCellOffset(rangeDayOffsetEnd) - 1;

        // loop through all the rows in the view
        for (var row=0; row<rowCnt; row++) {

                // first and last cell offset for the row
                var rowCellOffsetFirst = row * colCnt;
                var rowCellOffsetLast = rowCellOffsetFirst + colCnt - 1;

                // get the segment's cell offsets by constraining the range's cell offsets to the bounds of the row
                var segmentCellOffsetFirst = Math.max(rangeCellOffsetFirst, rowCellOffsetFirst);
                var segmentCellOffsetLast = Math.min(rangeCellOffsetLast, rowCellOffsetLast);

                // make sure segment's offsets are valid and in view
                if (segmentCellOffsetFirst <= segmentCellOffsetLast) {

                        // translate to cells
                        var segmentCellFirst = cellOffsetToCell(segmentCellOffsetFirst);
                        var segmentCellLast = cellOffsetToCell(segmentCellOffsetLast);

                        // view might be RTL, so order by leftmost column
                        var cols = [ segmentCellFirst.col, segmentCellLast.col ].sort();

                        // Determine if segment's first/last cell is the beginning/end of the date range.
                        // We need to compare "day offset" because "cell offsets" are often ambiguous and
                        // can translate to multiple days, and an edge case reveals itself when we the
                        // range's first cell is hidden (we don't want isStart to be true).
                        var isStart = cellOffsetToDayOffset(segmentCellOffsetFirst) == rangeDayOffsetStart;
                        var isEnd = cellOffsetToDayOffset(segmentCellOffsetLast) + 1 == rangeDayOffsetEnd; // +1 for comparing exclusively

                        segments.push({
                                row: row,
                                leftCol: cols[0],
                                rightCol: cols[1],
                                isStart: isStart,
                                isEnd: isEnd
                        });
                }
        }

        return segments;
}

}

;;

function DayEventRenderer() {

var t = this;

// exports
t.renderDayEvents = renderDayEvents;
t.draggableDayEvent = draggableDayEvent; // made public so that subclasses can override
t.resizableDayEvent = resizableDayEvent; // "

// imports
var opt = t.opt;
var trigger = t.trigger;
var isEventDraggable = t.isEventDraggable;
var isEventResizable = t.isEventResizable;
var eventEnd = t.eventEnd;
var reportEventElement = t.reportEventElement;
var eventElementHandlers = t.eventElementHandlers;
var showEvents = t.showEvents;
var hideEvents = t.hideEvents;
var eventDrop = t.eventDrop;
var eventResize = t.eventResize;
var getRowCnt = t.getRowCnt;
var getColCnt = t.getColCnt;
var getColWidth = t.getColWidth;
var allDayRow = t.allDayRow; // TODO: rename
var colLeft = t.colLeft;
var colRight = t.colRight;
var colContentLeft = t.colContentLeft;
var colContentRight = t.colContentRight;
var dateToCell = t.dateToCell;
var getDaySegmentContainer = t.getDaySegmentContainer;
var formatDates = t.calendar.formatDates;
var renderDayOverlay = t.renderDayOverlay;
var clearOverlays = t.clearOverlays;
var clearSelection = t.clearSelection;
var getHoverListener = t.getHoverListener;
var rangeToSegments = t.rangeToSegments;
var cellToDate = t.cellToDate;
var cellToCellOffset = t.cellToCellOffset;
var cellOffsetToDayOffset = t.cellOffsetToDayOffset;
var dateToDayOffset = t.dateToDayOffset;
var dayOffsetToCellOffset = t.dayOffsetToCellOffset;

// Render `events` onto the calendar, attach mouse event handlers, and call the `eventAfterRender` callback for each.
// Mouse event will be lazily applied, except if the event has an ID of `modifiedEventId`.
// Can only be called when the event container is empty (because it wipes out all innerHTML).
function renderDayEvents(events, modifiedEventId) {

        // do the actual rendering. Receive the intermediate "segment" data structures.
        var segments = _renderDayEvents(
                events,
                false, // don't append event elements
                true // set the heights of the rows
        );

        // report the elements to the View, for general drag/resize utilities
        segmentElementEach(segments, function(segment, element) {
                reportEventElement(segment.event, element);
        });

        // attach mouse handlers
        attachHandlers(segments, modifiedEventId);

        // call `eventAfterRender` callback for each event
        segmentElementEach(segments, function(segment, element) {
                trigger('eventAfterRender', segment.event, segment.event, element);
        });
}

// Render an event on the calendar, but don't report them anywhere, and don't attach mouse handlers.
// Append this event element to the event container, which might already be populated with events.
// If an event's segment will have row equal to `adjustRow`, then explicitly set its top coordinate to `adjustTop`.
// This hack is used to maintain continuity when user is manually resizing an event.
// Returns an array of DOM elements for the event.
function renderTempDayEvent(event, adjustRow, adjustTop) {

        // actually render the event. `true` for appending element to container.
        // Recieve the intermediate "segment" data structures.
        var segments = _renderDayEvents(
                [ event ],
                true, // append event elements
                false // don't set the heights of the rows
        );

        var elements = [];

        // Adjust certain elements' top coordinates
        segmentElementEach(segments, function(segment, element) {
                if (segment.row === adjustRow) {
                        element.css('top', adjustTop);
                }
                elements.push(element[0]); // accumulate DOM nodes
        });

        return elements;
}

// Render events onto the calendar. Only responsible for the VISUAL aspect.
// Not responsible for attaching handlers or calling callbacks.
// Set `doAppend` to `true` for rendering elements without clearing the existing container.
// Set `doRowHeights` to allow setting the height of each row, to compensate for vertical event overflow.
function _renderDayEvents(events, doAppend, doRowHeights) {

        // where the DOM nodes will eventually end up
        var finalContainer = getDaySegmentContainer();

        // the container where the initial HTML will be rendered.
        // If `doAppend`==true, uses a temporary container.
        var renderContainer = doAppend ? $("<div/>") : finalContainer;

        var segments = buildSegments(events);
        var html;
        var elements;

        // calculate the desired `left` and `width` properties on each segment object
        calculateHorizontals(segments);

        // build the HTML string. relies on `left` property
        html = buildHTML(segments);

        // render the HTML. innerHTML is considerably faster than jQuery's .html()
        renderContainer[0].innerHTML = html;

        // retrieve the individual elements
        elements = renderContainer.children();

        // if we were appending, and thus using a temporary container,
        // re-attach elements to the real container.
        if (doAppend) {
                finalContainer.append(elements);
        }

        // assigns each element to `segment.event`, after filtering them through user callbacks
        resolveElements(segments, elements);

        // Calculate the left and right padding+margin for each element.
        // We need this for setting each element's desired outer width, because of the W3C box model.
        // It's important we do this in a separate pass from acually setting the width on the DOM elements
        // because alternating reading/writing dimensions causes reflow for every iteration.
        segmentElementEach(segments, function(segment, element) {
                segment.hsides = hsides(element, true); // include margins = `true`
        });

        // Set the width of each element
        segmentElementEach(segments, function(segment, element) {
                element.width(
                        Math.max(0, segment.outerWidth - segment.hsides)
                );
        });

        // Grab each element's outerHeight (setVerticals uses this).
        // To get an accurate reading, it's important to have each element's width explicitly set already.
        segmentElementEach(segments, function(segment, element) {
                segment.outerHeight = element.outerHeight(true); // include margins = `true`
        });

        // Set the top coordinate on each element (requires segment.outerHeight)
        setVerticals(segments, doRowHeights);

        return segments;
}

// Generate an array of "segments" for all events.
function buildSegments(events) {
        var segments = [];
        for (var i=0; i<events.length; i++) {
                var eventSegments = buildSegmentsForEvent(events[i]);
                segments.push.apply(segments, eventSegments); // append an array to an array
        }
        return segments;
}

// Generate an array of segments for a single event.
// A "segment" is the same data structure that View.rangeToSegments produces,
// with the addition of the `event` property being set to reference the original event.
function buildSegmentsForEvent(event) {
        var startDate = event.start;
        var endDate = exclEndDay(event);
        var segments = rangeToSegments(startDate, endDate);
        for (var i=0; i<segments.length; i++) {
                segments[i].event = event;
        }
        return segments;
}

// Sets the `left` and `outerWidth` property of each segment.
// These values are the desired dimensions for the eventual DOM elements.
function calculateHorizontals(segments) {
        var isRTL = opt('isRTL');
        for (var i=0; i<segments.length; i++) {
                var segment = segments[i];

                // Determine functions used for calulating the elements left/right coordinates,
                // depending on whether the view is RTL or not.
                // NOTE:
                // colLeft/colRight returns the coordinate butting up the edge of the cell.
                // colContentLeft/colContentRight is indented a little bit from the edge.
                var leftFunc = (isRTL ? segment.isEnd : segment.isStart) ? colContentLeft : colLeft;
                var rightFunc = (isRTL ? segment.isStart : segment.isEnd) ? colContentRight : colRight;

                var left = leftFunc(segment.leftCol);
                var right = rightFunc(segment.rightCol);
                segment.left = left;
                segment.outerWidth = right - left;
        }
}

// Build a concatenated HTML string for an array of segments
function buildHTML(segments) {
        var html = '';
        for (var i=0; i<segments.length; i++) {
                html += buildHTMLForSegment(segments[i]);
        }
        return html;
}

// Build an HTML string for a single segment.
// Relies on the following properties:
// - `segment.event` (from `buildSegmentsForEvent`)
// - `segment.left` (from `calculateHorizontals`)
function buildHTMLForSegment(segment) {
        var html = '';
        var isRTL = opt('isRTL');
        var event = segment.event;
        var url = event.url;

        // generate the list of CSS classNames
        var classNames = [ 'fc-event', 'fc-event-hori' ];
        if (isEventDraggable(event)) {
                classNames.push('fc-event-draggable');
        }
        if (segment.isStart) {
                classNames.push('fc-event-start');
        }
        if (segment.isEnd) {
                classNames.push('fc-event-end');
        }
        // use the event's configured classNames
        // guaranteed to be an array via `normalizeEvent`
        classNames = classNames.concat(event.className);
        if (event.source) {
                // use the event's source's classNames, if specified
                classNames = classNames.concat(event.source.className || []);
        }

        // generate a semicolon delimited CSS string for any of the "skin" properties
        // of the event object (`backgroundColor`, `borderColor` and such)
        var skinCss = getSkinCss(event, opt);

        if (url) {
                html += "<a href='" + htmlEscape(url) + "'";
        }else{
                html += "<div";
        }
        html +=
                " class='" + classNames.join(' ') + "'" +
                " style=" +
                        "'" +
                        "position:absolute;" +
                        "left:" + segment.left + "px;" +
                        skinCss +
                        "'" +
                ">" +
                "<div class='fc-event-inner'>";
        if (!event.allDay && segment.isStart) {
                html +=
                        "<span class='fc-event-time'>" +
                        htmlEscape(
                                formatDates(event.start, event.end, opt('timeFormat'))
                        ) +
                        "</span>";
        }
        html +=
                "<span class='fc-event-title'>" +
                htmlEscape(event.title || '') +
                "</span>" +
                "</div>";
        if (segment.isEnd && isEventResizable(event)) {
                html +=
                        "<div class='ui-resizable-handle ui-resizable-" + (isRTL ? 'w' : 'e') + "'>" +
                        "&nbsp;&nbsp;&nbsp;" + // makes hit area a lot better for IE6/7
                        "</div>";
        }
        html += "</" + (url ? "a" : "div") + ">";

        // TODO:
        // When these elements are initially rendered, they will be briefly visibile on the screen,
        // even though their widths/heights are not set.
        // SOLUTION: initially set them as visibility:hidden ?

        return html;
}

// Associate each segment (an object) with an element (a jQuery object),
// by setting each `segment.element`.
// Run each element through the `eventRender` filter, which allows developers to
// modify an existing element, supply a new one, or cancel rendering.
function resolveElements(segments, elements) {
        for (var i=0; i<segments.length; i++) {
                var segment = segments[i];
                var event = segment.event;
                var element = elements.eq(i);

                // call the trigger with the original element
                var triggerRes = trigger('eventRender', event, event, element);

                if (triggerRes === false) {
                        // if `false`, remove the event from the DOM and don't assign it to `segment.event`
                        element.remove();
                }
                else {
                        if (triggerRes && triggerRes !== true) {
                                // the trigger returned a new element, but not `true` (which means keep the existing element)

                                // re-assign the important CSS dimension properties that were already assigned in `buildHTMLForSegment`
                                triggerRes = $(triggerRes)
                                        .css({
                                                position: 'absolute',
                                                left: segment.left
                                        });

                                element.replaceWith(triggerRes);
                                element = triggerRes;
                        }

                        segment.element = element;
                }
        }
}

/* Top-coordinate Methods
-------------------------------------------------------------------------------------------------*/

// Sets the "top" CSS property for each element.
// If `doRowHeights` is `true`, also sets each row's first cell to an explicit height,
// so that if elements vertically overflow, the cell expands vertically to compensate.
function setVerticals(segments, doRowHeights) {
        var rowContentHeights = calculateVerticals(segments); // also sets segment.top
        var rowContentElements = getRowContentElements(); // returns 1 inner div per row
        var rowContentTops = [];

        // Set each row's height by setting height of first inner div
        if (doRowHeights) {
                for (var i=0; i<rowContentElements.length; i++) {
                        rowContentElements[i].height(rowContentHeights[i]);
                }
        }

        // Get each row's top, relative to the views's origin.
        // Important to do this after setting each row's height.
        for (var i=0; i<rowContentElements.length; i++) {
                rowContentTops.push(
                        rowContentElements[i].position().top
                );
        }

        // Set each segment element's CSS "top" property.
        // Each segment object has a "top" property, which is relative to the row's top, but...
        segmentElementEach(segments, function(segment, element) {
                element.css(
                        'top',
                        rowContentTops[segment.row] + segment.top // ...now, relative to views's origin
                );
        });
}

// Calculate the "top" coordinate for each segment, relative to the "top" of the row.
// Also, return an array that contains the "content" height for each row
// (the height displaced by the vertically stacked events in the row).
// Requires segments to have their `outerHeight` property already set.
function calculateVerticals(segments) {
        var rowCnt = getRowCnt();
        var colCnt = getColCnt();
        var rowContentHeights = []; // content height for each row
        var segmentRows = buildSegmentRows(segments); // an array of segment arrays, one for each row

        for (var rowI=0; rowI<rowCnt; rowI++) {
                var segmentRow = segmentRows[rowI];

                // an array of running total heights for each column.
                // initialize with all zeros.
                var colHeights = [];
                for (var colI=0; colI<colCnt; colI++) {
                        colHeights.push(0);
                }

                // loop through every segment
                for (var segmentI=0; segmentI<segmentRow.length; segmentI++) {
                        var segment = segmentRow[segmentI];

                        // find the segment's top coordinate by looking at the max height
                        // of all the columns the segment will be in.
                        segment.top = arrayMax(
                                colHeights.slice(
                                        segment.leftCol,
                                        segment.rightCol + 1 // make exclusive for slice
                                )
                        );

                        // adjust the columns to account for the segment's height
                        for (var colI=segment.leftCol; colI<=segment.rightCol; colI++) {
                                colHeights[colI] = segment.top + segment.outerHeight;
                        }
                }

                // the tallest column in the row should be the "content height"
                rowContentHeights.push(arrayMax(colHeights));
        }

        return rowContentHeights;
}

// Build an array of segment arrays, each representing the segments that will
// be in a row of the grid, sorted by which event should be closest to the top.
function buildSegmentRows(segments) {
        var rowCnt = getRowCnt();
        var segmentRows = [];
        var segmentI;
        var segment;
        var rowI;

        // group segments by row
        for (segmentI=0; segmentI<segments.length; segmentI++) {
                segment = segments[segmentI];
                rowI = segment.row;
                if (segment.element) { // was rendered?
                        if (segmentRows[rowI]) {
                                // already other segments. append to array
                                segmentRows[rowI].push(segment);
                        }
                        else {
                                // first segment in row. create new array
                                segmentRows[rowI] = [ segment ];
                        }
                }
        }

        // sort each row
        for (rowI=0; rowI<rowCnt; rowI++) {
                segmentRows[rowI] = sortSegmentRow(
                        segmentRows[rowI] || [] // guarantee an array, even if no segments
                );
        }

        return segmentRows;
}

// Sort an array of segments according to which segment should appear closest to the top
function sortSegmentRow(segments) {
        var sortedSegments = [];

        // build the subrow array
        var subrows = buildSegmentSubrows(segments);

        // flatten it
        for (var i=0; i<subrows.length; i++) {
                sortedSegments.push.apply(sortedSegments, subrows[i]); // append an array to an array
        }

        return sortedSegments;
}

// Take an array of segments, which are all assumed to be in the same row,
// and sort into subrows.
function buildSegmentSubrows(segments) {

        // Give preference to elements with certain criteria, so they have
        // a chance to be closer to the top.
        segments.sort(compareDaySegments);

        var subrows = [];
        for (var i=0; i<segments.length; i++) {
                var segment = segments[i];

                // loop through subrows, starting with the topmost, until the segment
                // doesn't collide with other segments.
                for (var j=0; j<subrows.length; j++) {
                        if (!isDaySegmentCollision(segment, subrows[j])) {
                                break;
                        }
                }
                // `j` now holds the desired subrow index
                if (subrows[j]) {
                        subrows[j].push(segment);
                }
                else {
                        subrows[j] = [ segment ];
                }
        }

        return subrows;
}

// Return an array of jQuery objects for the placeholder content containers of each row.
// The content containers don't actually contain anything, but their dimensions should match
// the events that are overlaid on top.
function getRowContentElements() {
        var i;
        var rowCnt = getRowCnt();
        var rowDivs = [];
        for (i=0; i<rowCnt; i++) {
                rowDivs[i] = allDayRow(i)
                        .find('div.fc-day-content > div');
        }
        return rowDivs;
}

/* Mouse Handlers
---------------------------------------------------------------------------------------------------*/
// TODO: better documentation!

function attachHandlers(segments, modifiedEventId) {
        var segmentContainer = getDaySegmentContainer();

        segmentElementEach(segments, function(segment, element, i) {
                var event = segment.event;
                if (event._id === modifiedEventId) {
                        bindDaySeg(event, element, segment);
                }else{
                        element[0]._fci = i; // for lazySegBind
                }
        });

        lazySegBind(segmentContainer, segments, bindDaySeg);
}

function bindDaySeg(event, eventElement, segment) {

        if (isEventDraggable(event)) {
                t.draggableDayEvent(event, eventElement, segment); // use `t` so subclasses can override
        }

        if (
                segment.isEnd && // only allow resizing on the final segment for an event
                isEventResizable(event)
        ) {
                t.resizableDayEvent(event, eventElement, segment); // use `t` so subclasses can override
        }

        // attach all other handlers.
        // needs to be after, because resizableDayEvent might stopImmediatePropagation on click
        eventElementHandlers(event, eventElement);
}

function draggableDayEvent(event, eventElement) {
        var hoverListener = getHoverListener();
        var dayDelta;
        eventElement.draggable({
                delay: 50,
                opacity: opt('dragOpacity'),
                revertDuration: opt('dragRevertDuration'),
                start: function(ev, ui) {
                        trigger('eventDragStart', eventElement, event, ev, ui);
                        hideEvents(event, eventElement);
                        hoverListener.start(function(cell, origCell, rowDelta, colDelta) {
                                eventElement.draggable('option', 'revert', !cell || !rowDelta && !colDelta);
                                clearOverlays();
                                if (cell) {
                                        var origDate = cellToDate(origCell);
                                        var date = cellToDate(cell);
                                        dayDelta = dayDiff(date, origDate);
                                        renderDayOverlay(
                                                addDays(cloneDate(event.start), dayDelta),
                                                addDays(exclEndDay(event), dayDelta)
                                        );
                                }else{
                                        dayDelta = 0;
                                }
                        }, ev, 'drag');
                },
                stop: function(ev, ui) {
                        hoverListener.stop();
                        clearOverlays();
                        trigger('eventDragStop', eventElement, event, ev, ui);
                        if (dayDelta) {
                                eventDrop(this, event, dayDelta, 0, event.allDay, ev, ui);
                        }else{
                                eventElement.css('filter', ''); // clear IE opacity side-effects
                                showEvents(event, eventElement);
                        }
                }
        });
}

function resizableDayEvent(event, element, segment) {
        var isRTL = opt('isRTL');
        var direction = isRTL ? 'w' : 'e';
        var handle = element.find('.ui-resizable-' + direction); // TODO: stop using this class because we aren't using jqui for this
        var isResizing = false;

        // TODO: look into using jquery-ui mouse widget for this stuff
        disableTextSelection(element); // prevent native <a> selection for IE
        element
                .mousedown(function(ev) { // prevent native <a> selection for others
                        ev.preventDefault();
                })
                .click(function(ev) {
                        if (isResizing) {
                                ev.preventDefault(); // prevent link from being visited (only method that worked in IE6)
                                ev.stopImmediatePropagation(); // prevent fullcalendar eventClick handler from being called
                                                               // (eventElementHandlers needs to be bound after resizableDayEvent)
                        }
                });

        handle.mousedown(function(ev) {
                if (ev.which != 1) {
                        return; // needs to be left mouse button
                }
                isResizing = true;
                var hoverListener = getHoverListener();
                var rowCnt = getRowCnt();
                var colCnt = getColCnt();
                var elementTop = element.css('top');
                var dayDelta;
                var helpers;
                var eventCopy = $.extend({}, event);
                var minCellOffset = dayOffsetToCellOffset( dateToDayOffset(event.start) );
                clearSelection();
                $('body')
                        .css('cursor', direction + '-resize')
                        .one('mouseup', mouseup);
                trigger('eventResizeStart', this, event, ev);
                hoverListener.start(function(cell, origCell) {
                        if (cell) {

                                var origCellOffset = cellToCellOffset(origCell);
                                var cellOffset = cellToCellOffset(cell);

                                // don't let resizing move earlier than start date cell
                                cellOffset = Math.max(cellOffset, minCellOffset);

                                dayDelta =
                                        cellOffsetToDayOffset(cellOffset) -
                                        cellOffsetToDayOffset(origCellOffset);

                                if (dayDelta) {
                                        eventCopy.end = addDays(eventEnd(event), dayDelta, true);
                                        var oldHelpers = helpers;

                                        helpers = renderTempDayEvent(eventCopy, segment.row, elementTop);
                                        helpers = $(helpers); // turn array into a jQuery object

                                        helpers.find('*').css('cursor', direction + '-resize');
                                        if (oldHelpers) {
                                                oldHelpers.remove();
                                        }

                                        hideEvents(event);
                                }
                                else {
                                        if (helpers) {
                                                showEvents(event);
                                                helpers.remove();
                                                helpers = null;
                                        }
                                }
                                clearOverlays();
                                renderDayOverlay( // coordinate grid already rebuilt with hoverListener.start()
                                        event.start,
                                        addDays( exclEndDay(event), dayDelta )
                                        // TODO: instead of calling renderDayOverlay() with dates,
                                        // call _renderDayOverlay (or whatever) with cell offsets.
                                );
                        }
                }, ev);

                function mouseup(ev) {
                        trigger('eventResizeStop', this, event, ev);
                        $('body').css('cursor', '');
                        hoverListener.stop();
                        clearOverlays();
                        if (dayDelta) {
                                eventResize(this, event, dayDelta, 0, ev);
                                // event redraw will clear helpers
                        }
                        // otherwise, the drag handler already restored the old events

                        setTimeout(function() { // make this happen after the element's click event
                                isResizing = false;
                        },0);
                }
        });
}

}

/* Generalized Segment Utilities ————————————————————————————————-*/

function isDaySegmentCollision(segment, otherSegments) {

for (var i=0; i<otherSegments.length; i++) {
        var otherSegment = otherSegments[i];
        if (
                otherSegment.leftCol <= segment.rightCol &&
                otherSegment.rightCol >= segment.leftCol
        ) {
                return true;
        }
}
return false;

}

function segmentElementEach(segments, callback) { // TODO: use in AgendaView?

for (var i=0; i<segments.length; i++) {
        var segment = segments[i];
        var element = segment.element;
        if (element) {
                callback(segment, element, i);
        }
}

}

// A cmp function for determining which segments should appear higher up function compareDaySegments(a, b) {

return (b.rightCol - b.leftCol) - (a.rightCol - a.leftCol) || // put wider events first
        b.event.allDay - a.event.allDay || // if tie, put all-day events first (booleans cast to 0/1)
        a.event.start - b.event.start || // if a tie, sort by event start date
        (a.event.title || '').localeCompare(b.event.title) // if a tie, sort by event title

}

;;

//BUG: unselect needs to be triggered when events are dragged+dropped

function SelectionManager() {

var t = this;

// exports
t.select = select;
t.unselect = unselect;
t.reportSelection = reportSelection;
t.daySelectionMousedown = daySelectionMousedown;

// imports
var opt = t.opt;
var trigger = t.trigger;
var defaultSelectionEnd = t.defaultSelectionEnd;
var renderSelection = t.renderSelection;
var clearSelection = t.clearSelection;

// locals
var selected = false;

// unselectAuto
if (opt('selectable') && opt('unselectAuto')) {
        $(document).mousedown(function(ev) {
                var ignore = opt('unselectCancel');
                if (ignore) {
                        if ($(ev.target).parents(ignore).length) { // could be optimized to stop after first match
                                return;
                        }
                }
                unselect(ev);
        });
}

function select(startDate, endDate, allDay) {
        unselect();
        if (!endDate) {
                endDate = defaultSelectionEnd(startDate, allDay);
        }
        renderSelection(startDate, endDate, allDay);
        reportSelection(startDate, endDate, allDay);
}

function unselect(ev) {
        if (selected) {
                selected = false;
                clearSelection();
                trigger('unselect', null, ev);
        }
}

function reportSelection(startDate, endDate, allDay, ev) {
        selected = true;
        trigger('select', null, startDate, endDate, allDay, ev);
}

function daySelectionMousedown(ev) { // not really a generic manager method, oh well
        var cellToDate = t.cellToDate;
        var getIsCellAllDay = t.getIsCellAllDay;
        var hoverListener = t.getHoverListener();
        var reportDayClick = t.reportDayClick; // this is hacky and sort of weird
        if (ev.which == 1 && opt('selectable')) { // which==1 means left mouse button
                unselect(ev);
                var _mousedownElement = this;
                var dates;
                hoverListener.start(function(cell, origCell) { // TODO: maybe put cellToDate/getIsCellAllDay info in cell
                        clearSelection();
                        if (cell && getIsCellAllDay(cell)) {
                                dates = [ cellToDate(origCell), cellToDate(cell) ].sort(dateCompare);
                                renderSelection(dates[0], dates[1], true);
                        }else{
                                dates = null;
                        }
                }, ev);
                $(document).one('mouseup', function(ev) {
                        hoverListener.stop();
                        if (dates) {
                                if (+dates[0] == +dates[1]) {
                                        reportDayClick(dates[0], true, ev);
                                }
                                reportSelection(dates[0], dates[1], true, ev);
                        }
                });
        }
}

}

;;

function OverlayManager() {

var t = this;

// exports
t.renderOverlay = renderOverlay;
t.clearOverlays = clearOverlays;

// locals
var usedOverlays = [];
var unusedOverlays = [];

function renderOverlay(rect, parent) {
        var e = unusedOverlays.shift();
        if (!e) {
                e = $("<div class='fc-cell-overlay' style='position:absolute;z-index:3'/>");
        }
        if (e[0].parentNode != parent[0]) {
                e.appendTo(parent);
        }
        usedOverlays.push(e.css(rect).show());
        return e;
}

function clearOverlays() {
        var e;
        while (e = usedOverlays.shift()) {
                unusedOverlays.push(e.hide().unbind());
        }
}

}

;;

function CoordinateGrid(buildFunc) {

var t = this;
var rows;
var cols;

t.build = function() {
        rows = [];
        cols = [];
        buildFunc(rows, cols);
};

t.cell = function(x, y) {
        var rowCnt = rows.length;
        var colCnt = cols.length;
        var i, r=-1, c=-1;
        for (i=0; i<rowCnt; i++) {
                if (y >= rows[i][0] && y < rows[i][1]) {
                        r = i;
                        break;
                }
        }
        for (i=0; i<colCnt; i++) {
                if (x >= cols[i][0] && x < cols[i][1]) {
                        c = i;
                        break;
                }
        }
        return (r>=0 && c>=0) ? { row:r, col:c } : null;
};

t.rect = function(row0, col0, row1, col1, originElement) { // row1,col1 is inclusive
        var origin = originElement.offset();
        return {
                top: rows[row0][0] - origin.top,
                left: cols[col0][0] - origin.left,
                width: cols[col1][1] - cols[col0][0],
                height: rows[row1][1] - rows[row0][0]
        };
};

}

;;

function HoverListener(coordinateGrid) {

var t = this;
var bindType;
var change;
var firstCell;
var cell;

t.start = function(_change, ev, _bindType) {
        change = _change;
        firstCell = cell = null;
        coordinateGrid.build();
        mouse(ev);
        bindType = _bindType || 'mousemove';
        $(document).bind(bindType, mouse);
};

function mouse(ev) {
        _fixUIEvent(ev); // see below
        var newCell = coordinateGrid.cell(ev.pageX, ev.pageY);
        if (!newCell != !cell || newCell && (newCell.row != cell.row || newCell.col != cell.col)) {
                if (newCell) {
                        if (!firstCell) {
                                firstCell = newCell;
                        }
                        change(newCell, firstCell, newCell.row-firstCell.row, newCell.col-firstCell.col);
                }else{
                        change(newCell, firstCell);
                }
                cell = newCell;
        }
}

t.stop = function() {
        $(document).unbind(bindType, mouse);
        return cell;
};

}

// this fix was only necessary for jQuery UI 1.8.16 (and jQuery 1.7 or 1.7.1) // upgrading to jQuery UI 1.8.17 (and using either jQuery 1.7 or 1.7.1) fixed the problem // but keep this in here for 1.8.16 users // and maybe remove it down the line

function _fixUIEvent(event) { // for issue 1168

if (event.pageX === undefined) {
        event.pageX = event.originalEvent.pageX;
        event.pageY = event.originalEvent.pageY;
}

} ;;

function HorizontalPositionCache(getElement) {

var t = this,
        elements = {},
        lefts = {},
        rights = {};

function e(i) {
        return elements[i] = elements[i] || getElement(i);
}

t.left = function(i) {
        return lefts[i] = lefts[i] === undefined ? e(i).position().left : lefts[i];
};

t.right = function(i) {
        return rights[i] = rights[i] === undefined ? t.left(i) + e(i).width() : rights[i];
};

t.clear = function() {
        elements = {};
        lefts = {};
        rights = {};
};

}

;;

})(jQuery);