/**
* AngularJs Fullcalendar Wrapper for the JQuery FullCalendar
* API @ http://arshaw.com/fullcalendar/
*
* Angular Calendar Directive that takes in the [eventSources] nested array object as the ng-model and watches it deeply changes.
* Can also take in multiple event urls as a source object(s) and feed the events per view.
* The calendar will watch any eventSource array and update itself when a change is made.
*
* See https://angular-ui.github.io/ui-calendar/
* @class Directive_FullCalendar
* @constructor
* @module WebScripts
* @see https://angular-ui.github.io/ui-calendar/
* @author Adam Shaw
*/
angular.module('ui.calendar', [])
.constant('uiCalendarConfig', {calendars: {}})
.controller('uiCalendarCtrl', ['$scope',
'$locale', function(
$scope,
$locale){
var sources = $scope.eventSources,
extraEventSignature = $scope.calendarWatchEvent ? $scope.calendarWatchEvent : angular.noop,
wrapFunctionWithScopeApply = function(functionToWrap){
return function(){
// This may happen outside of angular context, so create one if outside.
if ($scope.$root.$$phase) {
return functionToWrap.apply(this, arguments);
} else {
var args = arguments;
var self = this;
return $scope.$root.$apply(function(){
return functionToWrap.apply(self, args);
});
}
};
};
var eventSerialId = 1;
// @return {String} fingerprint of the event object and its properties
this.eventFingerprint = function(e) {
if (!e._id) {
e._id = eventSerialId++;
}
// This extracts all the information we need from the event. http://jsperf.com/angular-calendar-events-fingerprint/3
return "" + e._id + (e.id || '') + (e.title || '') + (e.url || '') + (+e.start || '') + (+e.end || '') +
(e.allDay || '') + (e.className || '') + extraEventSignature({event: e}) || '';
};
var sourceSerialId = 1, sourceEventsSerialId = 1;
// @return {String} fingerprint of the source object and its events array
this.sourceFingerprint = function(source) {
var fp = '' + (source.__id || (source.__id = sourceSerialId++)),
events = angular.isObject(source) && source.events;
if (events) {
fp = fp + '-' + (events.__id || (events.__id = sourceEventsSerialId++));
}
return fp;
};
// @return {Array} all events from all sources
this.allEvents = function() {
// do sources.map(&:events).flatten(), but we don't have flatten
var arraySources = [];
for (var i = 0, srcLen = sources.length; i < srcLen; i++) {
var source = sources[i];
if (angular.isArray(source)) {
// event source as array
arraySources.push(source);
} else if(angular.isObject(source) && angular.isArray(source.events)){
// event source as object, ie extended form
var extEvent = {};
for(var key in source){
if(key !== '_id' && key !== 'events'){
extEvent[key] = source[key];
}
}
for(var eI = 0;eI < source.events.length;eI++){
angular.extend(source.events[eI],extEvent);
}
arraySources.push(source.events);
}
}
return Array.prototype.concat.apply([], arraySources);
};
// Track changes in array of objects by assigning id tokens to each element and watching the scope for changes in the tokens
// @param {Array|Function} arraySource array of objects to watch
// @param tokenFn {Function} that returns the token for a given object
// @return {Object}
// subscribe: function(scope, function(newTokens, oldTokens))
// called when source has changed. return false to prevent individual callbacks from firing
// onAdded/Removed/Changed:
// when set to a callback, called each item where a respective change is detected
this.changeWatcher = function(arraySource, tokenFn) {
var self;
var getTokens = function() {
var array = angular.isFunction(arraySource) ? arraySource() : arraySource;
var result = [], token, el;
for (var i = 0, n = array.length; i < n; i++) {
el = array[i];
token = tokenFn(el);
map[token] = el;
result.push(token);
}
return result;
};
// @param {Array} a
// @param {Array} b
// @return {Array} elements in that are in a but not in b
// @example
// subtractAsSets([6, 100, 4, 5], [4, 5, 7]) // [6, 100]
var subtractAsSets = function(a, b) {
var result = [], inB = {}, i, n;
for (i = 0, n = b.length; i < n; i++) {
inB[b[i]] = true;
}
for (i = 0, n = a.length; i < n; i++) {
if (!inB[a[i]]) {
result.push(a[i]);
}
}
return result;
};
// Map objects to tokens and vice-versa
var map = {};
// Compare newTokens to oldTokens and call onAdded, onRemoved, and onChanged handlers for each affected event respectively.
var applyChanges = function(newTokens, oldTokens) {
var i, n, el, token;
var replacedTokens = {};
var removedTokens = subtractAsSets(oldTokens, newTokens);
for (i = 0, n = removedTokens.length; i < n; i++) {
var removedToken = removedTokens[i];
el = map[removedToken];
delete map[removedToken];
var newToken = tokenFn(el);
// if the element wasn't removed but simply got a new token, its old token will be different from the current one
if (newToken === removedToken) {
self.onRemoved(el);
} else {
replacedTokens[newToken] = removedToken;
self.onChanged(el);
}
}
var addedTokens = subtractAsSets(newTokens, oldTokens);
for (i = 0, n = addedTokens.length; i < n; i++) {
token = addedTokens[i];
el = map[token];
if (!replacedTokens[token]) {
self.onAdded(el);
}
}
};
return self = {
subscribe: function(scope, onArrayChanged) {
scope.$watch(getTokens, function(newTokens, oldTokens) {
var notify = !(onArrayChanged && onArrayChanged(newTokens, oldTokens) === false);
if (notify) {
applyChanges(newTokens, oldTokens);
}
}, true);
},
onAdded: angular.noop,
onChanged: angular.noop,
onRemoved: angular.noop
};
};
this.getFullCalendarConfig = function(calendarSettings, uiCalendarConfig){
var config = {};
angular.extend(config, uiCalendarConfig);
angular.extend(config, calendarSettings);
angular.forEach(config, function(value,key){
if (typeof value === 'function'){
config[key] = wrapFunctionWithScopeApply(config[key]);
}
});
return config;
};
this.getLocaleConfig = function(fullCalendarConfig) {
if (!fullCalendarConfig.lang || fullCalendarConfig.useNgLocale) {
// Configure to use locale names by default
var tValues = function(data) {
// convert {0: "Jan", 1: "Feb", ...} to ["Jan", "Feb", ...]
var r, k;
r = [];
for (k in data) {
r[k] = data[k];
}
return r;
};
var dtf = $locale.DATETIME_FORMATS;
return {
monthNames: tValues(dtf.MONTH),
monthNamesShort: tValues(dtf.SHORTMONTH),
dayNames: tValues(dtf.DAY),
dayNamesShort: tValues(dtf.SHORTDAY)
};
}
return {};
};
}])
.directive('uiCalendar', ['uiCalendarConfig', function(uiCalendarConfig) {
return {
restrict: 'A',
scope: {eventSources:'=ngModel',calendarWatchEvent: '&'},
controller: 'uiCalendarCtrl',
link: function(scope, elm, attrs, controller) {
var sources = scope.eventSources,
sourcesChanged = false,
calendar,
eventSourcesWatcher = controller.changeWatcher(sources, controller.sourceFingerprint),
eventsWatcher = controller.changeWatcher(controller.allEvents, controller.eventFingerprint),
options = null;
function getOptions(){
var calendarSettings = attrs.uiCalendar ? scope.$parent.$eval(attrs.uiCalendar) : {},
fullCalendarConfig;
fullCalendarConfig = controller.getFullCalendarConfig(calendarSettings, uiCalendarConfig);
var localeFullCalendarConfig = controller.getLocaleConfig(fullCalendarConfig);
angular.extend(localeFullCalendarConfig, fullCalendarConfig);
options = { eventSources: sources };
angular.extend(options, localeFullCalendarConfig);
//remove calendars from options
options.calendars = null;
var options2 = {};
for(var o in options){
if(o !== 'eventSources'){
options2[o] = options[o];
}
}
return JSON.stringify(options2);
}
scope.destroy = function(){
if(calendar && calendar.fullCalendar){
calendar.fullCalendar('destroy');
}
if(attrs.calendar) {
calendar = uiCalendarConfig.calendars[attrs.calendar] = $(elm).html('');
} else {
calendar = $(elm).html('');
}
};
scope.init = function(){
calendar.fullCalendar(options);
if(attrs.calendar) {
uiCalendarConfig.calendars[attrs.calendar] = calendar;
}
};
eventSourcesWatcher.onAdded = function(source) {
calendar.fullCalendar('addEventSource', source);
sourcesChanged = true;
};
eventSourcesWatcher.onRemoved = function(source) {
calendar.fullCalendar('removeEventSource', source);
sourcesChanged = true;
};
eventSourcesWatcher.onChanged = function(source) {
calendar.fullCalendar('refetchEvents');
sourcesChanged = true;
};
eventsWatcher.onAdded = function(event) {
calendar.fullCalendar('renderEvent', event, (event.stick ? true : false));
};
eventsWatcher.onRemoved = function(event) {
calendar.fullCalendar('removeEvents', event._id);
};
eventsWatcher.onChanged = function(event) {
var clientEvents = calendar.fullCalendar('clientEvents', event._id);
for (var i = 0; i < clientEvents.length; i++) {
var clientEvent = clientEvents[i];
clientEvent = angular.extend(clientEvent, event);
calendar.fullCalendar('updateEvent', clientEvent);
}
};
eventSourcesWatcher.subscribe(scope);
eventsWatcher.subscribe(scope, function() {
if (sourcesChanged === true) {
sourcesChanged = false;
// return false to prevent onAdded/Removed/Changed handlers from firing in this case
return false;
}
});
scope.$watch(getOptions, function(newO,oldO){
scope.destroy();
scope.init();
});
}
};
}]);
