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jquery.weekcalendar.js
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jquery.weekcalendar.js
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/*
* jQuery.weekCalendar v1.2.3-pre
* http://www.redredred.com.au/
*
* Requires:
* - jquery.weekcalendar.css
* - jquery 1.3.x
* - jquery-ui 1.7.x (widget, drag, drop, resize)
*
* Copyright (c) 2009 Rob Monie
* Dual licensed under the MIT and GPL licenses:
* http://www.opensource.org/licenses/mit-license.php
* http://www.gnu.org/licenses/gpl.html
*
* If you're after a monthly calendar plugin, check out http://arshaw.com/fullcalendar/
*/
(function($) {
$.widget("ui.weekCalendar", {
options : {
date: new Date(),
timeFormat : "h:i a",
dateFormat : "M d, Y",
alwaysDisplayTimeMinutes: true,
use24Hour : false,
daysToShow : 7,
firstDayOfWeek : 0, // 0 = Sunday, 1 = Monday, 2 = Tuesday, ... , 6 = Saturday
useShortDayNames: false,
timeSeparator : " to ",
startParam : "start",
endParam : "end",
businessHours : {start: 8, end: 18, limitDisplay : false},
newEventText : "New Event",
timeslotHeight: 20,
defaultEventLength : 2,
timeslotsPerHour : 4,
buttons : true,
buttonText : {
today : "today",
lastWeek : " < ",
nextWeek : " > "
},
scrollToHourMillis : 500,
allowCalEventOverlap : false,
overlapEventsSeparate: false,
readonly: false,
draggable : function(calEvent, element) {
return true;
},
resizable : function(calEvent, element) {
return true;
},
eventClick : function() {
},
eventRender : function(calEvent, element) {
return element;
},
eventAfterRender : function(calEvent, element) {
return element;
},
eventDrag : function(calEvent, element) {
},
eventDrop : function(calEvent, element) {
},
eventResize : function(calEvent, element) {
},
eventNew : function(calEvent, element) {
},
eventMouseover : function(calEvent, $event) {
},
eventMouseout : function(calEvent, $event) {
},
calendarBeforeLoad : function(calendar) {
},
calendarAfterLoad : function(calendar) {
},
noEvents : function() {
},
shortMonths : ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],
longMonths : ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'],
shortDays : ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'],
longDays : ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday']
},
/***********************
* Initialise calendar *
***********************/
_create : function() {
var self = this;
self._computeOptions();
self._setupEventDelegation();
self._renderCalendar();
self._loadCalEvents();
self._resizeCalendar();
self._scrollToHour(self.options.date.getHours());
$(window).unbind("resize.weekcalendar");
$(window).bind("resize.weekcalendar", function() {
self._resizeCalendar();
});
},
/********************
* public functions *
********************/
/*
* Refresh the events for the currently displayed week.
*/
refresh : function() {
this._loadCalEvents(this.element.data("startDate")); //reload with existing week
},
/*
* Clear all events currently loaded into the calendar
*/
clear : function() {
this._clearCalendar();
},
/*
* Go to this week
*/
today : function() {
this._clearCalendar();
this._loadCalEvents(new Date());
},
/*
* Go to the previous week relative to the currently displayed week
*/
prevWeek : function() {
//minus more than 1 day to be sure we're in previous week - account for daylight savings or other anomolies
var newDate = new Date(this.element.data("startDate").getTime() - (MILLIS_IN_WEEK / 6));
this._clearCalendar();
this._loadCalEvents(newDate);
},
/*
* Go to the next week relative to the currently displayed week
*/
nextWeek : function() {
//add 8 days to be sure of being in prev week - allows for daylight savings or other anomolies
var newDate = new Date(this.element.data("startDate").getTime() + MILLIS_IN_WEEK + (MILLIS_IN_WEEK / 7));
this._clearCalendar();
this._loadCalEvents(newDate);
},
/*
* Reload the calendar to whatever week the date passed in falls on.
*/
gotoWeek : function(date) {
this._clearCalendar();
this._loadCalEvents(date);
},
/*
* Remove an event based on it's id
*/
removeEvent : function(eventId) {
var self = this;
self.element.find(".wc-cal-event").each(function() {
if ($(this).data("calEvent").id === eventId) {
$(this).remove();
return false;
}
});
//this could be more efficient rather than running on all days regardless...
self.element.find(".wc-day-column-inner").each(function() {
self._adjustOverlappingEvents($(this));
});
},
/*
* Removes any events that have been added but not yet saved (have no id).
* This is useful to call after adding a freshly saved new event.
*/
removeUnsavedEvents : function() {
var self = this;
self.element.find(".wc-new-cal-event").each(function() {
$(this).remove();
});
//this could be more efficient rather than running on all days regardless...
self.element.find(".wc-day-column-inner").each(function() {
self._adjustOverlappingEvents($(this));
});
},
/*
* update an event in the calendar. If the event exists it refreshes
* it's rendering. If it's a new event that does not exist in the calendar
* it will be added.
*/
updateEvent : function (calEvent) {
this._updateEventInCalendar(calEvent);
},
/*
* Returns an array of timeslot start and end times based on
* the configured grid of the calendar. Returns in both date and
* formatted time based on the 'timeFormat' config option.
*/
getTimeslotTimes : function(date) {
var options = this.options;
var firstHourDisplayed = options.businessHours.limitDisplay ? options.businessHours.start : 0;
var startDate = new Date(date.getFullYear(), date.getMonth(), date.getDate(), firstHourDisplayed);
var times = []
var startMillis = startDate.getTime();
for (var i = 0; i < options.timeslotsPerDay; i++) {
var endMillis = startMillis + options.millisPerTimeslot;
times[i] = {
start: new Date(startMillis),
startFormatted: this._formatDate(new Date(startMillis), options.timeFormat),
end: new Date(endMillis),
endFormatted: this._formatDate(new Date(endMillis), options.timeFormat)
};
startMillis = endMillis;
}
return times;
},
formatDate : function(date, format) {
if (format) {
return this._formatDate(date, format);
} else {
return this._formatDate(date, this.options.dateFormat);
}
},
formatTime : function(date, format) {
if (format) {
return this._formatDate(date, format);
} else {
return this._formatDate(date, this.options.timeFormat);
}
},
/*
getData : function(key) {
return this._getData(key);
},
*/
/*********************
* private functions *
*********************/
_setOption: function(key, value) {
var self = this;
if(self.options[key] != value) {
// this could be made more efficient at some stage by caching the
// events array locally in a store but this should be done in conjunction
// with a proper binding model.
var currentEvents = $.map(self.element.find(".wc-cal-event"), function() {
return $(this).data("calEvent");
});
var newOptions = {};
newOptions[key] = value;
self._renderEvents({events:currentEvents, options: newOptions}, self.element.find(".wc-day-column-inner"))
}
},
// compute dynamic options based on other config values
_computeOptions : function() {
var options = this.options;
if (options.businessHours.limitDisplay) {
options.timeslotsPerDay = options.timeslotsPerHour * (options.businessHours.end - options.businessHours.start);
options.millisToDisplay = (options.businessHours.end - options.businessHours.start) * 60 * 60 * 1000;
options.millisPerTimeslot = options.millisToDisplay / options.timeslotsPerDay;
} else {
options.timeslotsPerDay = options.timeslotsPerHour * 24;
options.millisToDisplay = MILLIS_IN_DAY;
options.millisPerTimeslot = MILLIS_IN_DAY / options.timeslotsPerDay;
}
},
/*
* Resize the calendar scrollable height based on the provided function in options.
*/
_resizeCalendar : function () {
var options = this.options;
if (options && $.isFunction(options.height)) {
var calendarHeight = options.height(this.element);
var headerHeight = this.element.find(".wc-header").outerHeight();
var navHeight = this.element.find(".wc-nav").outerHeight();
this.element.find(".wc-scrollable-grid").height(calendarHeight - navHeight - headerHeight);
}
},
/*
* configure calendar interaction events that are able to use event
* delegation for greater efficiency
*/
_setupEventDelegation : function() {
var self = this;
var options = this.options;
this.element.click(function(event) {
var $target = $(event.target);
if ($target.data("preventClick")) {
return;
}
if ($target.hasClass("wc-cal-event")) {
options.eventClick($target.data("calEvent"), $target, event);
} else if ($target.parent().hasClass("wc-cal-event")) {
options.eventClick($target.parent().data("calEvent"), $target.parent(), event);
}
}).mouseover(function(event) {
var $target = $(event.target);
if (self._isDraggingOrResizing($target)) {
return;
}
if ($target.hasClass("wc-cal-event")) {
options.eventMouseover($target.data("calEvent"), $target, event);
}
}).mouseout(function(event) {
var $target = $(event.target);
if (self._isDraggingOrResizing($target)) {
return;
}
if ($target.hasClass("wc-cal-event")) {
if ($target.data("sizing")) return;
options.eventMouseout($target.data("calEvent"), $target, event);
}
});
},
/*
* check if a ui draggable or resizable is currently being dragged or resized
*/
_isDraggingOrResizing : function ($target) {
return $target.hasClass("ui-draggable-dragging") || $target.hasClass("ui-resizable-resizing");
},
/*
* Render the main calendar layout
*/
_renderCalendar : function() {
var $calendarContainer, calendarNavHtml, calendarHeaderHtml, calendarBodyHtml, $weekDayColumns;
var self = this;
var options = this.options;
$calendarContainer = $("<div class=\"wc-container\">").appendTo(self.element);
if (options.buttons) {
calendarNavHtml = "<div class=\"wc-nav\">\
<button class=\"wc-today\">" + options.buttonText.today + "</button>\
<button class=\"wc-prev\">" + options.buttonText.lastWeek + "</button>\
<button class=\"wc-next\">" + options.buttonText.nextWeek + "</button>\
</div>";
$(calendarNavHtml).appendTo($calendarContainer);
$calendarContainer.find(".wc-nav .wc-today").click(function() {
self.element.weekCalendar("today");
return false;
});
$calendarContainer.find(".wc-nav .wc-prev").click(function() {
self.element.weekCalendar("prevWeek");
return false;
});
$calendarContainer.find(".wc-nav .wc-next").click(function() {
self.element.weekCalendar("nextWeek");
return false;
});
}
//render calendar header
calendarHeaderHtml = "<table class=\"wc-header\"><tbody><tr><td class=\"wc-time-column-header\"></td>";
for (var i = 1; i <= options.daysToShow; i++) {
calendarHeaderHtml += "<td class=\"wc-day-column-header wc-day-" + i + "\"></td>";
}
calendarHeaderHtml += "<td class=\"wc-scrollbar-shim\"></td></tr></tbody></table>";
//render calendar body
calendarBodyHtml = "<div class=\"wc-scrollable-grid\">\
<table class=\"wc-time-slots\">\
<tbody>\
<tr>\
<td class=\"wc-grid-timeslot-header\"></td>\
<td colspan=\"" + options.daysToShow + "\">\
<div class=\"wc-time-slot-wrapper\">\
<div class=\"wc-time-slots\">";
var start = options.businessHours.limitDisplay ? options.businessHours.start : 0;
var end = options.businessHours.limitDisplay ? options.businessHours.end : 24;
for (var i = start; i < end; i++) {
for (var j = 0; j < options.timeslotsPerHour - 1; j++) {
calendarBodyHtml += "<div class=\"wc-time-slot\"></div>";
}
calendarBodyHtml += "<div class=\"wc-time-slot wc-hour-end\"></div>";
}
calendarBodyHtml += "</div></div></td></tr><tr><td class=\"wc-grid-timeslot-header\">";
for (var i = start; i < end; i++) {
var bhClass = (options.businessHours.start <= i && options.businessHours.end > i) ? "wc-business-hours" : "";
calendarBodyHtml += "<div class=\"wc-hour-header " + bhClass + "\">"
if (options.use24Hour) {
calendarBodyHtml += "<div class=\"wc-time-header-cell\">" + self._24HourForIndex(i) + "</div>";
} else {
calendarBodyHtml += "<div class=\"wc-time-header-cell\">" + self._hourForIndex(i) + "<span class=\"wc-am-pm\">" + self._amOrPm(i) + "</span></div>";
}
calendarBodyHtml += "</div>";
}
calendarBodyHtml += "</td>";
for (var i = 1; i <= options.daysToShow; i++) {
calendarBodyHtml += "<td class=\"wc-day-column day-" + i + "\"><div class=\"wc-day-column-inner\"></div></td>"
}
calendarBodyHtml += "</tr></tbody></table></div>";
//append all calendar parts to container
$(calendarHeaderHtml + calendarBodyHtml).appendTo($calendarContainer);
$weekDayColumns = $calendarContainer.find(".wc-day-column-inner");
$weekDayColumns.each(function(i, val) {
$(this).height(options.timeslotHeight * options.timeslotsPerDay);
if (!options.readonly) {
self._addDroppableToWeekDay($(this));
self._setupEventCreationForWeekDay($(this));
}
});
$calendarContainer.find(".wc-time-slot").height(options.timeslotHeight - 1); //account for border
$calendarContainer.find(".wc-time-header-cell").css({
height : (options.timeslotHeight * options.timeslotsPerHour) - 11,
padding: 5
});
},
/*
* setup mouse events for capturing new events
*/
_setupEventCreationForWeekDay : function($weekDay) {
var self = this;
var options = this.options;
$weekDay.mousedown(function(event) {
var $target = $(event.target);
if ($target.hasClass("wc-day-column-inner")) {
var $newEvent = $("<div class=\"wc-cal-event wc-new-cal-event wc-new-cal-event-creating\"></div>");
$newEvent.css({lineHeight: (options.timeslotHeight - 2) + "px", fontSize: (options.timeslotHeight / 2) + "px"});
$target.append($newEvent);
var columnOffset = $target.offset().top;
var clickY = event.pageY - columnOffset;
var clickYRounded = (clickY - (clickY % options.timeslotHeight)) / options.timeslotHeight;
var topPosition = clickYRounded * options.timeslotHeight;
$newEvent.css({top: topPosition});
$target.bind("mousemove.newevent", function(event) {
$newEvent.show();
$newEvent.addClass("ui-resizable-resizing");
var height = Math.round(event.pageY - columnOffset - topPosition);
var remainder = height % options.timeslotHeight;
//snap to closest timeslot
if (remainder < (height / 2)) {
var useHeight = height - remainder;
$newEvent.css("height", useHeight < options.timeslotHeight ? options.timeslotHeight : useHeight);
} else {
$newEvent.css("height", height + (options.timeslotHeight - remainder));
}
}).mouseup(function() {
$target.unbind("mousemove.newevent");
$newEvent.addClass("ui-corner-all");
});
}
}).mouseup(function(event) {
var $target = $(event.target);
var $weekDay = $target.closest(".wc-day-column-inner");
var $newEvent = $weekDay.find(".wc-new-cal-event-creating");
if ($newEvent.length) {
//if even created from a single click only, default height
if (!$newEvent.hasClass("ui-resizable-resizing")) {
$newEvent.css({height: options.timeslotHeight * options.defaultEventLength}).show();
}
var top = parseInt($newEvent.css("top"));
var eventDuration = self._getEventDurationFromPositionedEventElement($weekDay, $newEvent, top);
$newEvent.remove();
var newCalEvent = {start: eventDuration.start, end: eventDuration.end, title: options.newEventText};
var $renderedCalEvent = self._renderEvent(newCalEvent, $weekDay);
if (!options.allowCalEventOverlap) {
self._adjustForEventCollisions($weekDay, $renderedCalEvent, newCalEvent, newCalEvent);
self._positionEvent($weekDay, $renderedCalEvent);
} else {
self._adjustOverlappingEvents($weekDay);
}
options.eventNew(eventDuration, $renderedCalEvent);
}
});
},
/*
* load calendar events for the week based on the date provided
*/
_loadCalEvents : function(dateWithinWeek) {
var date, weekStartDate, endDate, $weekDayColumns;
var self = this;
var options = this.options;
date = dateWithinWeek || options.date;
weekStartDate = self._dateFirstDayOfWeek(date);
weekEndDate = self._dateLastMilliOfWeek(date);
options.calendarBeforeLoad(self.element);
self.element.data("startDate", weekStartDate);
self.element.data("endDate", weekEndDate);
$weekDayColumns = self.element.find(".wc-day-column-inner");
self._updateDayColumnHeader($weekDayColumns);
//load events by chosen means
if (typeof options.data == 'string') {
if (options.loading) options.loading(true);
var jsonOptions = {};
jsonOptions[options.startParam || 'start'] = Math.round(weekStartDate.getTime() / 1000);
jsonOptions[options.endParam || 'end'] = Math.round(weekEndDate.getTime() / 1000);
$.getJSON(options.data, jsonOptions, function(data) {
self._renderEvents(data, $weekDayColumns);
if (options.loading) options.loading(false);
});
}
else if ($.isFunction(options.data)) {
options.data(weekStartDate, weekEndDate,
function(data) {
self._renderEvents(data, $weekDayColumns);
});
}
else if (options.data) {
self._renderEvents(options.data, $weekDayColumns);
}
self._disableTextSelect($weekDayColumns);
},
/*
* update the display of each day column header based on the calendar week
*/
_updateDayColumnHeader : function ($weekDayColumns) {
var self = this;
var options = this.options;
var currentDay = self._cloneDate(self.element.data("startDate"));
self.element.find(".wc-header td.wc-day-column-header").each(function(i, val) {
var dayName = options.useShortDayNames ? options.shortDays[currentDay.getDay()] : options.longDays[currentDay.getDay()];
$(this).html(dayName + "<br/>" + self._formatDate(currentDay, options.dateFormat));
if (self._isToday(currentDay)) {
$(this).addClass("wc-today");
} else {
$(this).removeClass("wc-today");
}
currentDay = self._addDays(currentDay, 1);
});
currentDay = self._dateFirstDayOfWeek(self._cloneDate(self.element.data("startDate")));
$weekDayColumns.each(function(i, val) {
$(this).data("startDate", self._cloneDate(currentDay));
$(this).data("endDate", new Date(currentDay.getTime() + (MILLIS_IN_DAY)));
if (self._isToday(currentDay)) {
$(this).parent().addClass("wc-today");
} else {
$(this).parent().removeClass("wc-today");
}
currentDay = self._addDays(currentDay, 1);
});
},
/*
* Render the events into the calendar
*/
_renderEvents : function (data, $weekDayColumns) {
this._clearCalendar();
var self = this;
var options = this.options;
var eventsToRender;
if ($.isArray(data)) {
eventsToRender = self._cleanEvents(data);
} else if (data.events) {
eventsToRender = self._cleanEvents(data.events);
}
if (data.options) {
var updateLayout = false;
//update options
$.each(data.options, function(key, value) {
if (value !== options[key]) {
options[key] = value;
updateLayout = true;
}
});
self._computeOptions();
if (updateLayout) {
self.element.empty();
self._renderCalendar();
$weekDayColumns = self.element.find(".wc-time-slots .wc-day-column-inner");
self._updateDayColumnHeader($weekDayColumns);
self._resizeCalendar();
}
}
$.each(eventsToRender, function(i, calEvent) {
var $weekDay = self._findWeekDayForEvent(calEvent, $weekDayColumns);
if ($weekDay) {
self._renderEvent(calEvent, $weekDay);
}
});
$weekDayColumns.each(function() {
self._adjustOverlappingEvents($(this));
});
options.calendarAfterLoad(self.element);
if (!eventsToRender.length) {
options.noEvents();
}
},
/*
* Render a specific event into the day provided. Assumes correct
* day for calEvent date
*/
_renderEvent: function (calEvent, $weekDay) {
var self = this;
var options = this.options;
if (calEvent.start.getTime() > calEvent.end.getTime()) {
return; // can't render a negative height
}
var eventClass, eventHtml, $calEvent, $modifiedEvent;
eventClass = calEvent.id ? "wc-cal-event" : "wc-cal-event wc-new-cal-event";
eventHtml = "<div class=\"" + eventClass + " ui-corner-all\">\
<div class=\"wc-time ui-corner-all\"></div>\
<div class=\"wc-title\"></div></div>";
$calEvent = $(eventHtml);
$modifiedEvent = options.eventRender(calEvent, $calEvent);
$calEvent = $modifiedEvent ? $modifiedEvent.appendTo($weekDay) : $calEvent.appendTo($weekDay);
$calEvent.css({lineHeight: (options.timeslotHeight - 2) + "px", fontSize: (options.timeslotHeight / 2) + "px"});
self._refreshEventDetails(calEvent, $calEvent);
self._positionEvent($weekDay, $calEvent);
$calEvent.show();
if (!options.readonly && options.resizable(calEvent, $calEvent)) {
self._addResizableToCalEvent(calEvent, $calEvent, $weekDay)
}
if (!options.readonly && options.draggable(calEvent, $calEvent)) {
self._addDraggableToCalEvent(calEvent, $calEvent);
}
options.eventAfterRender(calEvent, $calEvent);
return $calEvent;
},
_adjustOverlappingEvents : function($weekDay) {
var self = this;
if (self.options.allowCalEventOverlap) {
var groupsList = self._groupOverlappingEventElements($weekDay);
$.each(groupsList, function() {
var curGroups = this;
$.each(curGroups, function(groupIndex) {
var curGroup = this;
// do we want events to be displayed as overlapping
if (self.options.overlapEventsSeparate) {
var newWidth = 100 / curGroups.length;
var newLeft = groupIndex * newWidth;
} else {
// TODO what happens when the group has more than 10 elements
var newWidth = 100 - ( (curGroups.length - 1) * 10 );
var newLeft = groupIndex * 10;
}
$.each(curGroup, function() {
// bring mouseovered event to the front
if (!self.options.overlapEventsSeparate) {
$(this).bind("mouseover.z-index", function() {
var $elem = $(this);
$.each(curGroup, function() {
$(this).css({"z-index": "1"});
});
$elem.css({"z-index": "3"});
});
}
$(this).css({width: newWidth + "%", left:newLeft + "%", right: 0});
});
});
});
}
},
/*
* Find groups of overlapping events
*/
_groupOverlappingEventElements : function($weekDay) {
var $events = $weekDay.find(".wc-cal-event:visible");
var sortedEvents = $events.sort(function(a, b) {
return $(a).data("calEvent").start.getTime() - $(b).data("calEvent").start.getTime();
});
var lastEndTime = new Date(0, 0, 0);
var groups = [];
var curGroups = [];
var $curEvent;
$.each(sortedEvents, function() {
$curEvent = $(this);
//checks, if the current group list is not empty, if the overlapping is finished
if (curGroups.length > 0) {
if (lastEndTime.getTime() <= $curEvent.data("calEvent").start.getTime()) {
//finishes the current group list by adding it to the resulting list of groups and cleans it
groups.push(curGroups);
curGroups = [];
}
}
//finds the first group to fill with the event
for (var groupIndex = 0; groupIndex < curGroups.length; groupIndex++) {
if (curGroups[groupIndex].length > 0) {
//checks if the event starts after the end of the last event of the group
if (curGroups[groupIndex][curGroups [groupIndex].length - 1].data("calEvent").end.getTime() <= $curEvent.data("calEvent").start.getTime()) {
curGroups[groupIndex].push($curEvent);
if (lastEndTime.getTime() < $curEvent.data("calEvent").end.getTime()) {
lastEndTime = $curEvent.data("calEvent").end;
}
return;
}
}
}
//if not found, creates a new group
curGroups.push([$curEvent]);
if (lastEndTime.getTime() < $curEvent.data("calEvent").end.getTime()) {
lastEndTime = $curEvent.data("calEvent").end;
}
});
//adds the last groups in result
if (curGroups.length > 0) {
groups.push(curGroups);
}
return groups;
},
/*
* find the weekday in the current calendar that the calEvent falls within
*/
_findWeekDayForEvent : function(calEvent, $weekDayColumns) {
var $weekDay;
$weekDayColumns.each(function() {
if ($(this).data("startDate").getTime() <= calEvent.start.getTime() && $(this).data("endDate").getTime() >= calEvent.end.getTime()) {
$weekDay = $(this);
return false;
}
});
return $weekDay;
},
/*
* update the events rendering in the calendar. Add if does not yet exist.
*/
_updateEventInCalendar : function (calEvent) {
var self = this;
var options = this.options;
self._cleanEvent(calEvent);
if (calEvent.id) {
self.element.find(".wc-cal-event").each(function() {
if ($(this).data("calEvent").id === calEvent.id || $(this).hasClass("wc-new-cal-event")) {
$(this).remove();
return false;
}
});
}
var $weekDay = self._findWeekDayForEvent(calEvent, self.element.find(".wc-time-slots .wc-day-column-inner"));
if ($weekDay) {
var $calEvent = self._renderEvent(calEvent, $weekDay);
self._adjustForEventCollisions($weekDay, $calEvent, calEvent, calEvent);
self._refreshEventDetails(calEvent, $calEvent);
self._positionEvent($weekDay, $calEvent);
self._adjustOverlappingEvents($weekDay);
}
},
/*
* Position the event element within the weekday based on it's start / end dates.
*/
_positionEvent : function($weekDay, $calEvent) {
var options = this.options;
var calEvent = $calEvent.data("calEvent");
var pxPerMillis = $weekDay.height() / options.millisToDisplay;
var firstHourDisplayed = options.businessHours.limitDisplay ? options.businessHours.start : 0;
var startMillis = calEvent.start.getTime() - new Date(calEvent.start.getFullYear(), calEvent.start.getMonth(), calEvent.start.getDate(), firstHourDisplayed).getTime();
var eventMillis = calEvent.end.getTime() - calEvent.start.getTime();
var pxTop = pxPerMillis * startMillis;
var pxHeight = pxPerMillis * eventMillis;
$calEvent.css({top: pxTop, height: pxHeight});
},
/*
* Determine the actual start and end times of a calevent based on it's
* relative position within the weekday column and the starting hour of the
* displayed calendar.
*/
_getEventDurationFromPositionedEventElement : function($weekDay, $calEvent, top) {
var options = this.options;
var startOffsetMillis = options.businessHours.limitDisplay ? options.businessHours.start * 60 * 60 * 1000 : 0;
var start = new Date($weekDay.data("startDate").getTime() + startOffsetMillis + Math.round(top / options.timeslotHeight) * options.millisPerTimeslot);
var end = new Date(start.getTime() + ($calEvent.height() / options.timeslotHeight) * options.millisPerTimeslot);
return {start: start, end: end};
},
/*
* If the calendar does not allow event overlap, adjust the start or end date if necessary to
* avoid overlapping of events. Typically, shortens the resized / dropped event to it's max possible
* duration based on the overlap. If no satisfactory adjustment can be made, the event is reverted to
* it's original location.
*/
_adjustForEventCollisions : function($weekDay, $calEvent, newCalEvent, oldCalEvent, maintainEventDuration) {
var options = this.options;
if (options.allowCalEventOverlap) {
return;
}
var adjustedStart, adjustedEnd;
var self = this;
$weekDay.find(".wc-cal-event").not($calEvent).each(function() {
var currentCalEvent = $(this).data("calEvent");
//has been dropped onto existing event overlapping the end time
if (newCalEvent.start.getTime() < currentCalEvent.end.getTime()
&& newCalEvent.end.getTime() >= currentCalEvent.end.getTime()) {
adjustedStart = currentCalEvent.end;
}
//has been dropped onto existing event overlapping the start time
if (newCalEvent.end.getTime() > currentCalEvent.start.getTime()
&& newCalEvent.start.getTime() <= currentCalEvent.start.getTime()) {
adjustedEnd = currentCalEvent.start;
}
//has been dropped inside existing event with same or larger duration
if (oldCalEvent.resizable == false || (newCalEvent.end.getTime() <= currentCalEvent.end.getTime()
&& newCalEvent.start.getTime() >= currentCalEvent.start.getTime())) {
adjustedStart = oldCalEvent.start;
adjustedEnd = oldCalEvent.end;
return false;
}
});
newCalEvent.start = adjustedStart || newCalEvent.start;
if (adjustedStart && maintainEventDuration) {
newCalEvent.end = new Date(adjustedStart.getTime() + (oldCalEvent.end.getTime() - oldCalEvent.start.getTime()));
self._adjustForEventCollisions($weekDay, $calEvent, newCalEvent, oldCalEvent);
} else {
newCalEvent.end = adjustedEnd || newCalEvent.end;
}
//reset if new cal event has been forced to zero size
if (newCalEvent.start.getTime() >= newCalEvent.end.getTime()) {
newCalEvent.start = oldCalEvent.start;
newCalEvent.end = oldCalEvent.end;
}
$calEvent.data("calEvent", newCalEvent);
},
/*
* Add draggable capabilities to an event
*/
_addDraggableToCalEvent : function(calEvent, $calEvent) {
var self = this;
var options = this.options;
var $weekDay = self._findWeekDayForEvent(calEvent, self.element.find(".wc-time-slots .wc-day-column-inner"));
$calEvent.draggable({
handle : ".wc-time",
containment: ".wc-scrollable-grid",
revert: 'valid',
opacity: 0.5,
grid : [$calEvent.outerWidth() + 1, options.timeslotHeight ],
start : function(event, ui) {
var $calEvent = ui.draggable;
options.eventDrag(calEvent, $calEvent);
}
});
},
/*
* Add droppable capabilites to weekdays to allow dropping of calEvents only
*/
_addDroppableToWeekDay : function($weekDay) {
var self = this;
var options = this.options;
$weekDay.droppable({
accept: ".wc-cal-event",
drop: function(event, ui) {
var $calEvent = ui.draggable;
var top = Math.round(parseInt(ui.position.top));
var eventDuration = self._getEventDurationFromPositionedEventElement($weekDay, $calEvent, top);
var calEvent = $calEvent.data("calEvent");
var newCalEvent = $.extend(true, {}, calEvent, {start: eventDuration.start, end: eventDuration.end});
self._adjustForEventCollisions($weekDay, $calEvent, newCalEvent, calEvent, true);
var $weekDayColumns = self.element.find(".wc-day-column-inner");
//trigger drop callback
options.eventDrop(newCalEvent, calEvent, $newEvent);
var $newEvent = self._renderEvent(newCalEvent, self._findWeekDayForEvent(newCalEvent, $weekDayColumns));
$calEvent.hide();