From 7a0db61a0d9ba8e1359f5d14392bc90e6a0872e0 Mon Sep 17 00:00:00 2001 From: Trygve Laugstøl Date: Sun, 6 Jan 2013 23:57:14 +0100 Subject: o Creating a recent badges view. --- .../trygvis/esper/testing/core/db/PersonDao.java | 2 +- src/main/webapp/WEB-INF/tags/common/head.tagx | 2 + src/main/webapp/apps/app.js | 58 +- src/main/webapp/apps/frontPageApp/badgeList.html | 46 + src/main/webapp/apps/frontPageApp/frontPageApp.js | 63 +- src/main/webapp/apps/frontPageApp/personList.html | 2 +- src/main/webapp/external/datejs-Alpha1/date.js | 104 ++ .../external/underscore-1.4.3/underscore-min.js | 1 + .../webapp/external/underscore-1.4.3/underscore.js | 1221 ++++++++++++++++++++ 9 files changed, 1473 insertions(+), 26 deletions(-) create mode 100755 src/main/webapp/apps/frontPageApp/badgeList.html create mode 100644 src/main/webapp/external/datejs-Alpha1/date.js create mode 100644 src/main/webapp/external/underscore-1.4.3/underscore-min.js create mode 100644 src/main/webapp/external/underscore-1.4.3/underscore.js diff --git a/src/main/java/io/trygvis/esper/testing/core/db/PersonDao.java b/src/main/java/io/trygvis/esper/testing/core/db/PersonDao.java index ba3f628..4b22100 100755 --- a/src/main/java/io/trygvis/esper/testing/core/db/PersonDao.java +++ b/src/main/java/io/trygvis/esper/testing/core/db/PersonDao.java @@ -200,7 +200,7 @@ public class PersonDao { sql += " AND level=?"; } - sql += " ORDER BY created_date"; + sql += " ORDER BY created_date DESC"; sql += " LIMIT ? OFFSET ?"; try (PreparedStatement s = c.prepareStatement(sql)) { diff --git a/src/main/webapp/WEB-INF/tags/common/head.tagx b/src/main/webapp/WEB-INF/tags/common/head.tagx index 0f288fb..f651c2b 100755 --- a/src/main/webapp/WEB-INF/tags/common/head.tagx +++ b/src/main/webapp/WEB-INF/tags/common/head.tagx @@ -22,6 +22,8 @@ {angularjs: "/external/angular-1.0.3/angular.js"}, {angularjsResource: "/external/angular-1.0.3/angular-resource.js"}, {angularUiNgGrid: "/external/angular-ui/ng-grid-1.6.0/ng-grid-1.6.0.debug.js"}, + {underscore: "/external/underscore-1.4.3/underscore.js"}, + {datejs: "/external/datejs-Alpha1/date.js"}, {app: "/apps/app.js"}, {PagingTableService: "/apps/core/PagingTableService.js"} ); diff --git a/src/main/webapp/apps/app.js b/src/main/webapp/apps/app.js index 3d200ec..36736cd 100644 --- a/src/main/webapp/apps/app.js +++ b/src/main/webapp/apps/app.js @@ -4,26 +4,32 @@ directives.filter('countBadgeByLevel', function () { return function (badges) { // 5 levels var levels = [0, 0, 0, 0, 0]; - angular.forEach(badges, function(value, key){ + angular.forEach(badges, function (value, key) { levels[value.level - 1]++; }); return levels; } }); +directives.filter('isodate', function () { + return function (date) { + return date.toISOString(); + } +}); + directives.filter('gz', function () { return function (num) { - if(angular.isArray(num)) { + if (angular.isArray(num)) { var out = []; - angular.forEach(num, function(x){ - if(x > 0) { + angular.forEach(num, function (x) { + if (x > 0) { out.push(x); } }); return out; } - else if(angular.isNumber(num)) { + else if (angular.isNumber(num)) { return num > 0; } console.log("fail"); @@ -44,9 +50,47 @@ directives.directive('badge', function () { scope: { badgeDetail: '=badgeDetail' }, - template: '{{badgeDetail.badge.name}}' + - '' + + template: '' + + ' {{badgeDetail.badge.name}}' + + ' ' + + '' + ' awarded to ' + '{{badgeDetail.person.name}}' } }); + +directives.directive('badgeSpan', function () { + var template = + '' + + ' {{badge.name}}' + + ' ' + + ''; + + return { + restrict: 'E', + scope: { + badge: '=badge' + }, + template: template + } +}); + +directives.directive('personLink', function () { + return { + restrict: 'E', + scope: { + person: '=person' + }, + template: '{{person.name}}' + } +}); + +directives.directive('personAvatar', function () { + return { + restrict: 'E', + scope: { + person: '=person' + }, + template: '' + } +}); diff --git a/src/main/webapp/apps/frontPageApp/badgeList.html b/src/main/webapp/apps/frontPageApp/badgeList.html new file mode 100755 index 0000000..7671a55 --- /dev/null +++ b/src/main/webapp/apps/frontPageApp/badgeList.html @@ -0,0 +1,46 @@ +
+ + + +
+

Badges Awarded

+
+ + + +
+
+
+
+

{{date | date:'mediumDate'}}

+
+
+
+
+ +
+ +
+
+
+ +
+
+
diff --git a/src/main/webapp/apps/frontPageApp/frontPageApp.js b/src/main/webapp/apps/frontPageApp/frontPageApp.js index 39dbc9d..5f1cf2c 100755 --- a/src/main/webapp/apps/frontPageApp/frontPageApp.js +++ b/src/main/webapp/apps/frontPageApp/frontPageApp.js @@ -1,8 +1,9 @@ 'use strict'; -var frontPageApp = angular.module('frontPageApp', ['ngGrid', 'person', 'badge', 'build', 'pagingTableService', 'core.directives']).config(function ($routeProvider, $locationProvider) { +var frontPageApp = angular.module('frontPageApp', ['ngGrid', 'person', 'badge', 'build', 'pagingTableService', 'core.directives']).config(function ($routeProvider) { $routeProvider. when('/', {controller: FrontPageCtrl, templateUrl: '/apps/frontPageApp/frontPage.html?noCache=' + noCache}). + when('/badge/', {controller: BadgeListCtrl, templateUrl: '/apps/frontPageApp/badgeList.html?noCache=' + noCache}). when('/person/', {controller: PersonListCtrl, templateUrl: '/apps/frontPageApp/personList.html?noCache=' + noCache}). when('/person/:personUuid', {controller: PersonCtrl, templateUrl: '/apps/frontPageApp/person.html?noCache=' + noCache}); }); @@ -12,28 +13,56 @@ function FrontPageCtrl($scope, Person, Badge) { $scope.recentBadges = Badge.query(); } -function PersonListCtrl($scope, Person, PagingTableService) { +function groupBy(array, size) { + var group = []; + var groups = []; + angular.forEach(array, function (element) { + group.push(element); + if (group.length == size) { + groups.push(group); + group = []; + } + }); + + if (group.length != 0) { + groups.push(group); + } + return groups; +} + +function BadgeListCtrl($scope, Badge, PagingTableService) { + var groupSize = 6; + var personsWatcher = function () { - var array = $scope.persons.rows; - - var group = []; - var groups = []; - angular.forEach(array, function(element) { - group.push(element); - if(group.length == 4) { - groups.push(group); - group = []; - } + var withDay = _.map($scope.badges.rows, function(badge) { + badge.day = new Date(badge.badge.createdDate).clearTime().getTime(); +// badge.day.clearTime(); + return badge; }); - if(group.length != 0) { - groups.push(group); - } + var byDay = _.groupBy(withDay, 'day'); + console.log("byDay", byDay); +// var dateGroups = _.map(byDay, function(group, date) { +// return {date: groupBy(group, groupSize)} +// }); + + $scope.badgeGroups = byDay; + }; + + $scope.badges = PagingTableService.create($scope, PagingTableService.defaultCallback(Badge), + {count: groupSize * 6, watcher: personsWatcher}); - $scope.personGroups = groups; + $scope.badgeGroups = []; +} + +function PersonListCtrl($scope, Person, PagingTableService) { + var groupSize = 4; + var personsWatcher = function () { + $scope.personGroups = groupBy($scope.persons.rows, groupSize); }; - $scope.persons = PagingTableService.create($scope, PagingTableService.defaultCallback(Person, {orderBy: "name"}), {count: 4 * 6, watcher: personsWatcher}); + $scope.persons = PagingTableService.create($scope, PagingTableService.defaultCallback(Person, {orderBy: "name"}), + {count: groupSize * 6, watcher: personsWatcher}); $scope.personGroups = []; } diff --git a/src/main/webapp/apps/frontPageApp/personList.html b/src/main/webapp/apps/frontPageApp/personList.html index 5247f29..5d7d8c6 100755 --- a/src/main/webapp/apps/frontPageApp/personList.html +++ b/src/main/webapp/apps/frontPageApp/personList.html @@ -25,7 +25,7 @@
- + {{person.person.name}}
diff --git a/src/main/webapp/external/datejs-Alpha1/date.js b/src/main/webapp/external/datejs-Alpha1/date.js new file mode 100644 index 0000000..2d52e9a --- /dev/null +++ b/src/main/webapp/external/datejs-Alpha1/date.js @@ -0,0 +1,104 @@ +/** + * Version: 1.0 Alpha-1 + * Build Date: 13-Nov-2007 + * Copyright (c) 2006-2007, Coolite Inc. (http://www.coolite.com/). All rights reserved. + * License: Licensed under The MIT License. See license.txt and http://www.datejs.com/license/. + * Website: http://www.datejs.com/ or http://www.coolite.com/datejs/ + */ +Date.CultureInfo={name:"en-US",englishName:"English (United States)",nativeName:"English (United States)",dayNames:["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"],abbreviatedDayNames:["Sun","Mon","Tue","Wed","Thu","Fri","Sat"],shortestDayNames:["Su","Mo","Tu","We","Th","Fr","Sa"],firstLetterDayNames:["S","M","T","W","T","F","S"],monthNames:["January","February","March","April","May","June","July","August","September","October","November","December"],abbreviatedMonthNames:["Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"],amDesignator:"AM",pmDesignator:"PM",firstDayOfWeek:0,twoDigitYearMax:2029,dateElementOrder:"mdy",formatPatterns:{shortDate:"M/d/yyyy",longDate:"dddd, MMMM dd, yyyy",shortTime:"h:mm tt",longTime:"h:mm:ss tt",fullDateTime:"dddd, MMMM dd, yyyy h:mm:ss tt",sortableDateTime:"yyyy-MM-ddTHH:mm:ss",universalSortableDateTime:"yyyy-MM-dd HH:mm:ssZ",rfc1123:"ddd, dd MMM yyyy HH:mm:ss GMT",monthDay:"MMMM dd",yearMonth:"MMMM, yyyy"},regexPatterns:{jan:/^jan(uary)?/i,feb:/^feb(ruary)?/i,mar:/^mar(ch)?/i,apr:/^apr(il)?/i,may:/^may/i,jun:/^jun(e)?/i,jul:/^jul(y)?/i,aug:/^aug(ust)?/i,sep:/^sep(t(ember)?)?/i,oct:/^oct(ober)?/i,nov:/^nov(ember)?/i,dec:/^dec(ember)?/i,sun:/^su(n(day)?)?/i,mon:/^mo(n(day)?)?/i,tue:/^tu(e(s(day)?)?)?/i,wed:/^we(d(nesday)?)?/i,thu:/^th(u(r(s(day)?)?)?)?/i,fri:/^fr(i(day)?)?/i,sat:/^sa(t(urday)?)?/i,future:/^next/i,past:/^last|past|prev(ious)?/i,add:/^(\+|after|from)/i,subtract:/^(\-|before|ago)/i,yesterday:/^yesterday/i,today:/^t(oday)?/i,tomorrow:/^tomorrow/i,now:/^n(ow)?/i,millisecond:/^ms|milli(second)?s?/i,second:/^sec(ond)?s?/i,minute:/^min(ute)?s?/i,hour:/^h(ou)?rs?/i,week:/^w(ee)?k/i,month:/^m(o(nth)?s?)?/i,day:/^d(ays?)?/i,year:/^y((ea)?rs?)?/i,shortMeridian:/^(a|p)/i,longMeridian:/^(a\.?m?\.?|p\.?m?\.?)/i,timezone:/^((e(s|d)t|c(s|d)t|m(s|d)t|p(s|d)t)|((gmt)?\s*(\+|\-)\s*\d\d\d\d?)|gmt)/i,ordinalSuffix:/^\s*(st|nd|rd|th)/i,timeContext:/^\s*(\:|a|p)/i},abbreviatedTimeZoneStandard:{GMT:"-000",EST:"-0400",CST:"-0500",MST:"-0600",PST:"-0700"},abbreviatedTimeZoneDST:{GMT:"-000",EDT:"-0500",CDT:"-0600",MDT:"-0700",PDT:"-0800"}}; +Date.getMonthNumberFromName=function(name){var n=Date.CultureInfo.monthNames,m=Date.CultureInfo.abbreviatedMonthNames,s=name.toLowerCase();for(var i=0;idate)?1:(this=start.getTime()&&t<=end.getTime();};Date.prototype.addMilliseconds=function(value){this.setMilliseconds(this.getMilliseconds()+value);return this;};Date.prototype.addSeconds=function(value){return this.addMilliseconds(value*1000);};Date.prototype.addMinutes=function(value){return this.addMilliseconds(value*60000);};Date.prototype.addHours=function(value){return this.addMilliseconds(value*3600000);};Date.prototype.addDays=function(value){return this.addMilliseconds(value*86400000);};Date.prototype.addWeeks=function(value){return this.addMilliseconds(value*604800000);};Date.prototype.addMonths=function(value){var n=this.getDate();this.setDate(1);this.setMonth(this.getMonth()+value);this.setDate(Math.min(n,this.getDaysInMonth()));return this;};Date.prototype.addYears=function(value){return this.addMonths(value*12);};Date.prototype.add=function(config){if(typeof config=="number"){this._orient=config;return this;} +var x=config;if(x.millisecond||x.milliseconds){this.addMilliseconds(x.millisecond||x.milliseconds);} +if(x.second||x.seconds){this.addSeconds(x.second||x.seconds);} +if(x.minute||x.minutes){this.addMinutes(x.minute||x.minutes);} +if(x.hour||x.hours){this.addHours(x.hour||x.hours);} +if(x.month||x.months){this.addMonths(x.month||x.months);} +if(x.year||x.years){this.addYears(x.year||x.years);} +if(x.day||x.days){this.addDays(x.day||x.days);} +return this;};Date._validate=function(value,min,max,name){if(typeof value!="number"){throw new TypeError(value+" is not a Number.");}else if(valuemax){throw new RangeError(value+" is not a valid value for "+name+".");} +return true;};Date.validateMillisecond=function(n){return Date._validate(n,0,999,"milliseconds");};Date.validateSecond=function(n){return Date._validate(n,0,59,"seconds");};Date.validateMinute=function(n){return Date._validate(n,0,59,"minutes");};Date.validateHour=function(n){return Date._validate(n,0,23,"hours");};Date.validateDay=function(n,year,month){return Date._validate(n,1,Date.getDaysInMonth(year,month),"days");};Date.validateMonth=function(n){return Date._validate(n,0,11,"months");};Date.validateYear=function(n){return Date._validate(n,1,9999,"seconds");};Date.prototype.set=function(config){var x=config;if(!x.millisecond&&x.millisecond!==0){x.millisecond=-1;} +if(!x.second&&x.second!==0){x.second=-1;} +if(!x.minute&&x.minute!==0){x.minute=-1;} +if(!x.hour&&x.hour!==0){x.hour=-1;} +if(!x.day&&x.day!==0){x.day=-1;} +if(!x.month&&x.month!==0){x.month=-1;} +if(!x.year&&x.year!==0){x.year=-1;} +if(x.millisecond!=-1&&Date.validateMillisecond(x.millisecond)){this.addMilliseconds(x.millisecond-this.getMilliseconds());} +if(x.second!=-1&&Date.validateSecond(x.second)){this.addSeconds(x.second-this.getSeconds());} +if(x.minute!=-1&&Date.validateMinute(x.minute)){this.addMinutes(x.minute-this.getMinutes());} +if(x.hour!=-1&&Date.validateHour(x.hour)){this.addHours(x.hour-this.getHours());} +if(x.month!==-1&&Date.validateMonth(x.month)){this.addMonths(x.month-this.getMonth());} +if(x.year!=-1&&Date.validateYear(x.year)){this.addYears(x.year-this.getFullYear());} +if(x.day!=-1&&Date.validateDay(x.day,this.getFullYear(),this.getMonth())){this.addDays(x.day-this.getDate());} +if(x.timezone){this.setTimezone(x.timezone);} +if(x.timezoneOffset){this.setTimezoneOffset(x.timezoneOffset);} +return this;};Date.prototype.clearTime=function(){this.setHours(0);this.setMinutes(0);this.setSeconds(0);this.setMilliseconds(0);return this;};Date.prototype.isLeapYear=function(){var y=this.getFullYear();return(((y%4===0)&&(y%100!==0))||(y%400===0));};Date.prototype.isWeekday=function(){return!(this.is().sat()||this.is().sun());};Date.prototype.getDaysInMonth=function(){return Date.getDaysInMonth(this.getFullYear(),this.getMonth());};Date.prototype.moveToFirstDayOfMonth=function(){return this.set({day:1});};Date.prototype.moveToLastDayOfMonth=function(){return this.set({day:this.getDaysInMonth()});};Date.prototype.moveToDayOfWeek=function(day,orient){var diff=(day-this.getDay()+7*(orient||+1))%7;return this.addDays((diff===0)?diff+=7*(orient||+1):diff);};Date.prototype.moveToMonth=function(month,orient){var diff=(month-this.getMonth()+12*(orient||+1))%12;return this.addMonths((diff===0)?diff+=12*(orient||+1):diff);};Date.prototype.getDayOfYear=function(){return Math.floor((this-new Date(this.getFullYear(),0,1))/86400000);};Date.prototype.getWeekOfYear=function(firstDayOfWeek){var y=this.getFullYear(),m=this.getMonth(),d=this.getDate();var dow=firstDayOfWeek||Date.CultureInfo.firstDayOfWeek;var offset=7+1-new Date(y,0,1).getDay();if(offset==8){offset=1;} +var daynum=((Date.UTC(y,m,d,0,0,0)-Date.UTC(y,0,1,0,0,0))/86400000)+1;var w=Math.floor((daynum-offset+7)/7);if(w===dow){y--;var prevOffset=7+1-new Date(y,0,1).getDay();if(prevOffset==2||prevOffset==8){w=53;}else{w=52;}} +return w;};Date.prototype.isDST=function(){console.log('isDST');return this.toString().match(/(E|C|M|P)(S|D)T/)[2]=="D";};Date.prototype.getTimezone=function(){return Date.getTimezoneAbbreviation(this.getUTCOffset,this.isDST());};Date.prototype.setTimezoneOffset=function(s){var here=this.getTimezoneOffset(),there=Number(s)*-6/10;this.addMinutes(there-here);return this;};Date.prototype.setTimezone=function(s){return this.setTimezoneOffset(Date.getTimezoneOffset(s));};Date.prototype.getUTCOffset=function(){var n=this.getTimezoneOffset()*-10/6,r;if(n<0){r=(n-10000).toString();return r[0]+r.substr(2);}else{r=(n+10000).toString();return"+"+r.substr(1);}};Date.prototype.getDayName=function(abbrev){return 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value of the `_` variable. + var previousUnderscore = root._; + + // Establish the object that gets returned to break out of a loop iteration. + var breaker = {}; + + // Save bytes in the minified (but not gzipped) version: + var ArrayProto = Array.prototype, ObjProto = Object.prototype, FuncProto = Function.prototype; + + // Create quick reference variables for speed access to core prototypes. + var push = ArrayProto.push, + slice = ArrayProto.slice, + concat = ArrayProto.concat, + toString = ObjProto.toString, + hasOwnProperty = ObjProto.hasOwnProperty; + + // All **ECMAScript 5** native function implementations that we hope to use + // are declared here. + var + nativeForEach = ArrayProto.forEach, + nativeMap = ArrayProto.map, + nativeReduce = ArrayProto.reduce, + nativeReduceRight = ArrayProto.reduceRight, + nativeFilter = ArrayProto.filter, + nativeEvery = ArrayProto.every, + nativeSome = ArrayProto.some, + nativeIndexOf = ArrayProto.indexOf, + nativeLastIndexOf = ArrayProto.lastIndexOf, + nativeIsArray = Array.isArray, + nativeKeys = Object.keys, + nativeBind = FuncProto.bind; + + // Create a safe reference to the Underscore object for use below. + var _ = function(obj) { + if (obj instanceof _) return obj; + if (!(this instanceof _)) return new _(obj); + this._wrapped = obj; + }; + + // Export the Underscore object for **Node.js**, with + // backwards-compatibility for the old `require()` API. If we're in + // the browser, add `_` as a global object via a string identifier, + // for Closure Compiler "advanced" mode. + if (typeof exports !== 'undefined') { + if (typeof module !== 'undefined' && module.exports) { + exports = module.exports = _; + } + exports._ = _; + } else { + root._ = _; + } + + // Current version. + _.VERSION = '1.4.3'; + + // Collection Functions + // -------------------- + + // The cornerstone, an `each` implementation, aka `forEach`. + // Handles objects with the built-in `forEach`, arrays, and raw objects. + // Delegates to **ECMAScript 5**'s native `forEach` if available. + var each = _.each = _.forEach = function(obj, iterator, context) { + if (obj == null) return; + if (nativeForEach && obj.forEach === nativeForEach) { + obj.forEach(iterator, context); + } else if (obj.length === +obj.length) { + for (var i = 0, l = obj.length; i < l; i++) { + if (iterator.call(context, obj[i], i, obj) === breaker) return; + } + } else { + for (var key in obj) { + if (_.has(obj, key)) { + if (iterator.call(context, obj[key], key, obj) === breaker) return; + } + } + } + }; + + // Return the results of applying the iterator to each element. + // Delegates to **ECMAScript 5**'s native `map` if available. + _.map = _.collect = function(obj, iterator, context) { + var results = []; + if (obj == null) return results; + if (nativeMap && obj.map === nativeMap) return obj.map(iterator, context); + each(obj, function(value, index, list) { + results[results.length] = iterator.call(context, value, index, list); + }); + return results; + }; + + var reduceError = 'Reduce of empty array with no initial value'; + + // **Reduce** builds up a single result from a list of values, aka `inject`, + // or `foldl`. Delegates to **ECMAScript 5**'s native `reduce` if available. + _.reduce = _.foldl = _.inject = function(obj, iterator, memo, context) { + var initial = arguments.length > 2; + if (obj == null) obj = []; + if (nativeReduce && obj.reduce === nativeReduce) { + if (context) iterator = _.bind(iterator, context); + return initial ? obj.reduce(iterator, memo) : obj.reduce(iterator); + } + each(obj, function(value, index, list) { + if (!initial) { + memo = value; + initial = true; + } else { + memo = iterator.call(context, memo, value, index, list); + } + }); + if (!initial) throw new TypeError(reduceError); + return memo; + }; + + // The right-associative version of reduce, also known as `foldr`. + // Delegates to **ECMAScript 5**'s native `reduceRight` if available. + _.reduceRight = _.foldr = function(obj, iterator, memo, context) { + var initial = arguments.length > 2; + if (obj == null) obj = []; + if (nativeReduceRight && obj.reduceRight === nativeReduceRight) { + if (context) iterator = _.bind(iterator, context); + return initial ? obj.reduceRight(iterator, memo) : obj.reduceRight(iterator); + } + var length = obj.length; + if (length !== +length) { + var keys = _.keys(obj); + length = keys.length; + } + each(obj, function(value, index, list) { + index = keys ? keys[--length] : --length; + if (!initial) { + memo = obj[index]; + initial = true; + } else { + memo = iterator.call(context, memo, obj[index], index, list); + } + }); + if (!initial) throw new TypeError(reduceError); + return memo; + }; + + // Return the first value which passes a truth test. Aliased as `detect`. + _.find = _.detect = function(obj, iterator, context) { + var result; + any(obj, function(value, index, list) { + if (iterator.call(context, value, index, list)) { + result = value; + return true; + } + }); + return result; + }; + + // Return all the elements that pass a truth test. + // Delegates to **ECMAScript 5**'s native `filter` if available. + // Aliased as `select`. + _.filter = _.select = function(obj, iterator, context) { + var results = []; + if (obj == null) return results; + if (nativeFilter && obj.filter === nativeFilter) return obj.filter(iterator, context); + each(obj, function(value, index, list) { + if (iterator.call(context, value, index, list)) results[results.length] = value; + }); + return results; + }; + + // Return all the elements for which a truth test fails. + _.reject = function(obj, iterator, context) { + return _.filter(obj, function(value, index, list) { + return !iterator.call(context, value, index, list); + }, context); + }; + + // Determine whether all of the elements match a truth test. + // Delegates to **ECMAScript 5**'s native `every` if available. + // Aliased as `all`. + _.every = _.all = function(obj, iterator, context) { + iterator || (iterator = _.identity); + var result = true; + if (obj == null) return result; + if (nativeEvery && obj.every === nativeEvery) return obj.every(iterator, context); + each(obj, function(value, index, list) { + if (!(result = result && iterator.call(context, value, index, list))) return breaker; + }); + return !!result; + }; + + // Determine if at least one element in the object matches a truth test. + // Delegates to **ECMAScript 5**'s native `some` if available. + // Aliased as `any`. + var any = _.some = _.any = function(obj, iterator, context) { + iterator || (iterator = _.identity); + var result = false; + if (obj == null) return result; + if (nativeSome && obj.some === nativeSome) return obj.some(iterator, context); + each(obj, function(value, index, list) { + if (result || (result = iterator.call(context, value, index, list))) return breaker; + }); + return !!result; + }; + + // Determine if the array or object contains a given value (using `===`). + // Aliased as `include`. + _.contains = _.include = function(obj, target) { + if (obj == null) return false; + if (nativeIndexOf && obj.indexOf === nativeIndexOf) return obj.indexOf(target) != -1; + return any(obj, function(value) { + return value === target; + }); + }; + + // Invoke a method (with arguments) on every item in a collection. + _.invoke = function(obj, method) { + var args = slice.call(arguments, 2); + return _.map(obj, function(value) { + return (_.isFunction(method) ? method : value[method]).apply(value, args); + }); + }; + + // Convenience version of a common use case of `map`: fetching a property. + _.pluck = function(obj, key) { + return _.map(obj, function(value){ return value[key]; }); + }; + + // Convenience version of a common use case of `filter`: selecting only objects + // with specific `key:value` pairs. + _.where = function(obj, attrs) { + if (_.isEmpty(attrs)) return []; + return _.filter(obj, function(value) { + for (var key in attrs) { + if (attrs[key] !== value[key]) return false; + } + return true; + }); + }; + + // Return the maximum element or (element-based computation). + // Can't optimize arrays of integers longer than 65,535 elements. + // See: https://bugs.webkit.org/show_bug.cgi?id=80797 + _.max = function(obj, iterator, context) { + if (!iterator && _.isArray(obj) && obj[0] === +obj[0] && obj.length < 65535) { + return Math.max.apply(Math, obj); + } + if (!iterator && _.isEmpty(obj)) return -Infinity; + var result = {computed : -Infinity, value: -Infinity}; + each(obj, function(value, index, list) { + var computed = iterator ? iterator.call(context, value, index, list) : value; + computed >= result.computed && (result = {value : value, computed : computed}); + }); + return result.value; + }; + + // Return the minimum element (or element-based computation). + _.min = function(obj, iterator, context) { + if (!iterator && _.isArray(obj) && obj[0] === +obj[0] && obj.length < 65535) { + return Math.min.apply(Math, obj); + } + if (!iterator && _.isEmpty(obj)) return Infinity; + var result = {computed : Infinity, value: Infinity}; + each(obj, function(value, index, list) { + var computed = iterator ? iterator.call(context, value, index, list) : value; + computed < result.computed && (result = {value : value, computed : computed}); + }); + return result.value; + }; + + // Shuffle an array. + _.shuffle = function(obj) { + var rand; + var index = 0; + var shuffled = []; + each(obj, function(value) { + rand = _.random(index++); + shuffled[index - 1] = shuffled[rand]; + shuffled[rand] = value; + }); + return shuffled; + }; + + // An internal function to generate lookup iterators. + var lookupIterator = function(value) { + return _.isFunction(value) ? value : function(obj){ return obj[value]; }; + }; + + // Sort the object's values by a criterion produced by an iterator. + _.sortBy = function(obj, value, context) { + var iterator = lookupIterator(value); + return _.pluck(_.map(obj, function(value, index, list) { + return { + value : value, + index : index, + criteria : iterator.call(context, value, index, list) + }; + }).sort(function(left, right) { + var a = left.criteria; + var b = right.criteria; + if (a !== b) { + if (a > b || a === void 0) return 1; + if (a < b || b === void 0) return -1; + } + return left.index < right.index ? -1 : 1; + }), 'value'); + }; + + // An internal function used for aggregate "group by" operations. + var group = function(obj, value, context, behavior) { + var result = {}; + var iterator = lookupIterator(value || _.identity); + each(obj, function(value, index) { + var key = iterator.call(context, value, index, obj); + behavior(result, key, value); + }); + return result; + }; + + // Groups the object's values by a criterion. Pass either a string attribute + // to group by, or a function that returns the criterion. + _.groupBy = function(obj, value, context) { + return group(obj, value, context, function(result, key, value) { + (_.has(result, key) ? result[key] : (result[key] = [])).push(value); + }); + }; + + // Counts instances of an object that group by a certain criterion. Pass + // either a string attribute to count by, or a function that returns the + // criterion. + _.countBy = function(obj, value, context) { + return group(obj, value, context, function(result, key) { + if (!_.has(result, key)) result[key] = 0; + result[key]++; + }); + }; + + // Use a comparator function to figure out the smallest index at which + // an object should be inserted so as to maintain order. Uses binary search. + _.sortedIndex = function(array, obj, iterator, context) { + iterator = iterator == null ? _.identity : lookupIterator(iterator); + var value = iterator.call(context, obj); + var low = 0, high = array.length; + while (low < high) { + var mid = (low + high) >>> 1; + iterator.call(context, array[mid]) < value ? low = mid + 1 : high = mid; + } + return low; + }; + + // Safely convert anything iterable into a real, live array. + _.toArray = function(obj) { + if (!obj) return []; + if (_.isArray(obj)) return slice.call(obj); + if (obj.length === +obj.length) return _.map(obj, _.identity); + return _.values(obj); + }; + + // Return the number of elements in an object. + _.size = function(obj) { + if (obj == null) return 0; + return (obj.length === +obj.length) ? obj.length : _.keys(obj).length; + }; + + // Array Functions + // --------------- + + // Get the first element of an array. Passing **n** will return the first N + // values in the array. Aliased as `head` and `take`. The **guard** check + // allows it to work with `_.map`. + _.first = _.head = _.take = function(array, n, guard) { + if (array == null) return void 0; + return (n != null) && !guard ? slice.call(array, 0, n) : array[0]; + }; + + // Returns everything but the last entry of the array. Especially useful on + // the arguments object. Passing **n** will return all the values in + // the array, excluding the last N. The **guard** check allows it to work with + // `_.map`. + _.initial = function(array, n, guard) { + return slice.call(array, 0, array.length - ((n == null) || guard ? 1 : n)); + }; + + // Get the last element of an array. Passing **n** will return the last N + // values in the array. The **guard** check allows it to work with `_.map`. + _.last = function(array, n, guard) { + if (array == null) return void 0; + if ((n != null) && !guard) { + return slice.call(array, Math.max(array.length - n, 0)); + } else { + return array[array.length - 1]; + } + }; + + // Returns everything but the first entry of the array. Aliased as `tail` and `drop`. + // Especially useful on the arguments object. Passing an **n** will return + // the rest N values in the array. The **guard** + // check allows it to work with `_.map`. + _.rest = _.tail = _.drop = function(array, n, guard) { + return slice.call(array, (n == null) || guard ? 1 : n); + }; + + // Trim out all falsy values from an array. + _.compact = function(array) { + return _.filter(array, _.identity); + }; + + // Internal implementation of a recursive `flatten` function. + var flatten = function(input, shallow, output) { + each(input, function(value) { + if (_.isArray(value)) { + shallow ? push.apply(output, value) : flatten(value, shallow, output); + } else { + output.push(value); + } + }); + return output; + }; + + // Return a completely flattened version of an array. + _.flatten = function(array, shallow) { + return flatten(array, shallow, []); + }; + + // Return a version of the array that does not contain the specified value(s). + _.without = function(array) { + return _.difference(array, slice.call(arguments, 1)); + }; + + // Produce a duplicate-free version of the array. If the array has already + // been sorted, you have the option of using a faster algorithm. + // Aliased as `unique`. + _.uniq = _.unique = function(array, isSorted, iterator, context) { + if (_.isFunction(isSorted)) { + context = iterator; + iterator = isSorted; + isSorted = false; + } + var initial = iterator ? _.map(array, iterator, context) : array; + var results = []; + var seen = []; + each(initial, function(value, index) { + if (isSorted ? (!index || seen[seen.length - 1] !== value) : !_.contains(seen, value)) { + seen.push(value); + results.push(array[index]); + } + }); + return results; + }; + + // Produce an array that contains the union: each distinct element from all of + // the passed-in arrays. + _.union = function() { + return _.uniq(concat.apply(ArrayProto, arguments)); + }; + + // Produce an array that contains every item shared between all the + // passed-in arrays. + _.intersection = function(array) { + var rest = slice.call(arguments, 1); + return _.filter(_.uniq(array), function(item) { + return _.every(rest, function(other) { + return _.indexOf(other, item) >= 0; + }); + }); + }; + + // Take the difference between one array and a number of other arrays. + // Only the elements present in just the first array will remain. + _.difference = function(array) { + var rest = concat.apply(ArrayProto, slice.call(arguments, 1)); + return _.filter(array, function(value){ return !_.contains(rest, value); }); + }; + + // Zip together multiple lists into a single array -- elements that share + // an index go together. + _.zip = function() { + var args = slice.call(arguments); + var length = _.max(_.pluck(args, 'length')); + var results = new Array(length); + for (var i = 0; i < length; i++) { + results[i] = _.pluck(args, "" + i); + } + return results; + }; + + // Converts lists into objects. Pass either a single array of `[key, value]` + // pairs, or two parallel arrays of the same length -- one of keys, and one of + // the corresponding values. + _.object = function(list, values) { + if (list == null) return {}; + var result = {}; + for (var i = 0, l = list.length; i < l; i++) { + if (values) { + result[list[i]] = values[i]; + } else { + result[list[i][0]] = list[i][1]; + } + } + return result; + }; + + // If the browser doesn't supply us with indexOf (I'm looking at you, **MSIE**), + // we need this function. Return the position of the first occurrence of an + // item in an array, or -1 if the item is not included in the array. + // Delegates to **ECMAScript 5**'s native `indexOf` if available. + // If the array is large and already in sort order, pass `true` + // for **isSorted** to use binary search. + _.indexOf = function(array, item, isSorted) { + if (array == null) return -1; + var i = 0, l = array.length; + if (isSorted) { + if (typeof isSorted == 'number') { + i = (isSorted < 0 ? Math.max(0, l + isSorted) : isSorted); + } else { + i = _.sortedIndex(array, item); + return array[i] === item ? i : -1; + } + } + if (nativeIndexOf && array.indexOf === nativeIndexOf) return array.indexOf(item, isSorted); + for (; i < l; i++) if (array[i] === item) return i; + return -1; + }; + + // Delegates to **ECMAScript 5**'s native `lastIndexOf` if available. + _.lastIndexOf = function(array, item, from) { + if (array == null) return -1; + var hasIndex = from != null; + if (nativeLastIndexOf && array.lastIndexOf === nativeLastIndexOf) { + return hasIndex ? array.lastIndexOf(item, from) : array.lastIndexOf(item); + } + var i = (hasIndex ? from : array.length); + while (i--) if (array[i] === item) return i; + return -1; + }; + + // Generate an integer Array containing an arithmetic progression. A port of + // the native Python `range()` function. See + // [the Python documentation](http://docs.python.org/library/functions.html#range). + _.range = function(start, stop, step) { + if (arguments.length <= 1) { + stop = start || 0; + start = 0; + } + step = arguments[2] || 1; + + var len = Math.max(Math.ceil((stop - start) / step), 0); + var idx = 0; + var range = new Array(len); + + while(idx < len) { + range[idx++] = start; + start += step; + } + + return range; + }; + + // Function (ahem) Functions + // ------------------ + + // Reusable constructor function for prototype setting. + var ctor = function(){}; + + // Create a function bound to a given object (assigning `this`, and arguments, + // optionally). Binding with arguments is also known as `curry`. + // Delegates to **ECMAScript 5**'s native `Function.bind` if available. + // We check for `func.bind` first, to fail fast when `func` is undefined. + _.bind = function(func, context) { + var args, bound; + if (func.bind === nativeBind && nativeBind) return nativeBind.apply(func, slice.call(arguments, 1)); + if (!_.isFunction(func)) throw new TypeError; + args = slice.call(arguments, 2); + return bound = function() { + if (!(this instanceof bound)) return func.apply(context, args.concat(slice.call(arguments))); + ctor.prototype = func.prototype; + var self = new ctor; + ctor.prototype = null; + var result = func.apply(self, args.concat(slice.call(arguments))); + if (Object(result) === result) return result; + return self; + }; + }; + + // Bind all of an object's methods to that object. Useful for ensuring that + // all callbacks defined on an object belong to it. + _.bindAll = function(obj) { + var funcs = slice.call(arguments, 1); + if (funcs.length == 0) funcs = _.functions(obj); + each(funcs, function(f) { obj[f] = _.bind(obj[f], obj); }); + return obj; + }; + + // Memoize an expensive function by storing its results. + _.memoize = function(func, hasher) { + var memo = {}; + hasher || (hasher = _.identity); + return function() { + var key = hasher.apply(this, arguments); + return _.has(memo, key) ? memo[key] : (memo[key] = func.apply(this, arguments)); + }; + }; + + // Delays a function for the given number of milliseconds, and then calls + // it with the arguments supplied. + _.delay = function(func, wait) { + var args = slice.call(arguments, 2); + return setTimeout(function(){ return func.apply(null, args); }, wait); + }; + + // Defers a function, scheduling it to run after the current call stack has + // cleared. + _.defer = function(func) { + return _.delay.apply(_, [func, 1].concat(slice.call(arguments, 1))); + }; + + // Returns a function, that, when invoked, will only be triggered at most once + // during a given window of time. + _.throttle = function(func, wait) { + var context, args, timeout, result; + var previous = 0; + var later = function() { + previous = new Date; + timeout = null; + result = func.apply(context, args); + }; + return function() { + var now = new Date; + var remaining = wait - (now - previous); + context = this; + args = arguments; + if (remaining <= 0) { + clearTimeout(timeout); + timeout = null; + previous = now; + result = func.apply(context, args); + } else if (!timeout) { + timeout = setTimeout(later, remaining); + } + return result; + }; + }; + + // Returns a function, that, as long as it continues to be invoked, will not + // be triggered. The function will be called after it stops being called for + // N milliseconds. If `immediate` is passed, trigger the function on the + // leading edge, instead of the trailing. + _.debounce = function(func, wait, immediate) { + var timeout, result; + return function() { + var context = this, args = arguments; + var later = function() { + timeout = null; + if (!immediate) result = func.apply(context, args); + }; + var callNow = immediate && !timeout; + clearTimeout(timeout); + timeout = setTimeout(later, wait); + if (callNow) result = func.apply(context, args); + return result; + }; + }; + + // Returns a function that will be executed at most one time, no matter how + // often you call it. Useful for lazy initialization. + _.once = function(func) { + var ran = false, memo; + return function() { + if (ran) return memo; + ran = true; + memo = func.apply(this, arguments); + func = null; + return memo; + }; + }; + + // Returns the first function passed as an argument to the second, + // allowing you to adjust arguments, run code before and after, and + // conditionally execute the original function. + _.wrap = function(func, wrapper) { + return function() { + var args = [func]; + push.apply(args, arguments); + return wrapper.apply(this, args); + }; + }; + + // Returns a function that is the composition of a list of functions, each + // consuming the return value of the function that follows. + _.compose = function() { + var funcs = arguments; + return function() { + var args = arguments; + for (var i = funcs.length - 1; i >= 0; i--) { + args = [funcs[i].apply(this, args)]; + } + return args[0]; + }; + }; + + // Returns a function that will only be executed after being called N times. + _.after = function(times, func) { + if (times <= 0) return func(); + return function() { + if (--times < 1) { + return func.apply(this, arguments); + } + }; + }; + + // Object Functions + // ---------------- + + // Retrieve the names of an object's properties. + // Delegates to **ECMAScript 5**'s native `Object.keys` + _.keys = nativeKeys || function(obj) { + if (obj !== Object(obj)) throw new TypeError('Invalid object'); + var keys = []; + for (var key in obj) if (_.has(obj, key)) keys[keys.length] = key; + return keys; + }; + + // Retrieve the values of an object's properties. + _.values = function(obj) { + var values = []; + for (var key in obj) if (_.has(obj, key)) values.push(obj[key]); + return values; + }; + + // Convert an object into a list of `[key, value]` pairs. + _.pairs = function(obj) { + var pairs = []; + for (var key in obj) if (_.has(obj, key)) pairs.push([key, obj[key]]); + return pairs; + }; + + // Invert the keys and values of an object. The values must be serializable. + _.invert = function(obj) { + var result = {}; + for (var key in obj) if (_.has(obj, key)) result[obj[key]] = key; + return result; + }; + + // Return a sorted list of the function names available on the object. + // Aliased as `methods` + _.functions = _.methods = function(obj) { + var names = []; + for (var key in obj) { + if (_.isFunction(obj[key])) names.push(key); + } + return names.sort(); + }; + + // Extend a given object with all the properties in passed-in object(s). + _.extend = function(obj) { + each(slice.call(arguments, 1), function(source) { + if (source) { + for (var prop in source) { + obj[prop] = source[prop]; + } + } + }); + return obj; + }; + + // Return a copy of the object only containing the whitelisted properties. + _.pick = function(obj) { + var copy = {}; + var keys = concat.apply(ArrayProto, slice.call(arguments, 1)); + each(keys, function(key) { + if (key in obj) copy[key] = obj[key]; + }); + return copy; + }; + + // Return a copy of the object without the blacklisted properties. + _.omit = function(obj) { + var copy = {}; + var keys = concat.apply(ArrayProto, slice.call(arguments, 1)); + for (var key in obj) { + if (!_.contains(keys, key)) copy[key] = obj[key]; + } + return copy; + }; + + // Fill in a given object with default properties. + _.defaults = function(obj) { + each(slice.call(arguments, 1), function(source) { + if (source) { + for (var prop in source) { + if (obj[prop] == null) obj[prop] = source[prop]; + } + } + }); + return obj; + }; + + // Create a (shallow-cloned) duplicate of an object. + _.clone = function(obj) { + if (!_.isObject(obj)) return obj; + return _.isArray(obj) ? obj.slice() : _.extend({}, obj); + }; + + // Invokes interceptor with the obj, and then returns obj. + // The primary purpose of this method is to "tap into" a method chain, in + // order to perform operations on intermediate results within the chain. + _.tap = function(obj, interceptor) { + interceptor(obj); + return obj; + }; + + // Internal recursive comparison function for `isEqual`. + var eq = function(a, b, aStack, bStack) { + // Identical objects are equal. `0 === -0`, but they aren't identical. + // See the Harmony `egal` proposal: http://wiki.ecmascript.org/doku.php?id=harmony:egal. + if (a === b) return a !== 0 || 1 / a == 1 / b; + // A strict comparison is necessary because `null == undefined`. + if (a == null || b == null) return a === b; + // Unwrap any wrapped objects. + if (a instanceof _) a = a._wrapped; + if (b instanceof _) b = b._wrapped; + // Compare `[[Class]]` names. + var className = toString.call(a); + if (className != toString.call(b)) return false; + switch (className) { + // Strings, numbers, dates, and booleans are compared by value. + case '[object String]': + // Primitives and their corresponding object wrappers are equivalent; thus, `"5"` is + // equivalent to `new String("5")`. + return a == String(b); + case '[object Number]': + // `NaN`s are equivalent, but non-reflexive. An `egal` comparison is performed for + // other numeric values. + return a != +a ? b != +b : (a == 0 ? 1 / a == 1 / b : a == +b); + case '[object Date]': + case '[object Boolean]': + // Coerce dates and booleans to numeric primitive values. Dates are compared by their + // millisecond representations. Note that invalid dates with millisecond representations + // of `NaN` are not equivalent. + return +a == +b; + // RegExps are compared by their source patterns and flags. + case '[object RegExp]': + return a.source == b.source && + a.global == b.global && + a.multiline == b.multiline && + a.ignoreCase == b.ignoreCase; + } + if (typeof a != 'object' || typeof b != 'object') return false; + // Assume equality for cyclic structures. The algorithm for detecting cyclic + // structures is adapted from ES 5.1 section 15.12.3, abstract operation `JO`. + var length = aStack.length; + while (length--) { + // Linear search. Performance is inversely proportional to the number of + // unique nested structures. + if (aStack[length] == a) return bStack[length] == b; + } + // Add the first object to the stack of traversed objects. + aStack.push(a); + bStack.push(b); + var size = 0, result = true; + // Recursively compare objects and arrays. + if (className == '[object Array]') { + // Compare array lengths to determine if a deep comparison is necessary. + size = a.length; + result = size == b.length; + if (result) { + // Deep compare the contents, ignoring non-numeric properties. + while (size--) { + if (!(result = eq(a[size], b[size], aStack, bStack))) break; + } + } + } else { + // Objects with different constructors are not equivalent, but `Object`s + // from different frames are. + var aCtor = a.constructor, bCtor = b.constructor; + if (aCtor !== bCtor && !(_.isFunction(aCtor) && (aCtor instanceof aCtor) && + _.isFunction(bCtor) && (bCtor instanceof bCtor))) { + return false; + } + // Deep compare objects. + for (var key in a) { + if (_.has(a, key)) { + // Count the expected number of properties. + size++; + // Deep compare each member. + if (!(result = _.has(b, key) && eq(a[key], b[key], aStack, bStack))) break; + } + } + // Ensure that both objects contain the same number of properties. + if (result) { + for (key in b) { + if (_.has(b, key) && !(size--)) break; + } + result = !size; + } + } + // Remove the first object from the stack of traversed objects. + aStack.pop(); + bStack.pop(); + return result; + }; + + // Perform a deep comparison to check if two objects are equal. + _.isEqual = function(a, b) { + return eq(a, b, [], []); + }; + + // Is a given array, string, or object empty? + // An "empty" object has no enumerable own-properties. + _.isEmpty = function(obj) { + if (obj == null) return true; + if (_.isArray(obj) || _.isString(obj)) return obj.length === 0; + for (var key in obj) if (_.has(obj, key)) return false; + return true; + }; + + // Is a given value a DOM element? + _.isElement = function(obj) { + return !!(obj && obj.nodeType === 1); + }; + + // Is a given value an array? + // Delegates to ECMA5's native Array.isArray + _.isArray = nativeIsArray || function(obj) { + return toString.call(obj) == '[object Array]'; + }; + + // Is a given variable an object? + _.isObject = function(obj) { + return obj === Object(obj); + }; + + // Add some isType methods: isArguments, isFunction, isString, isNumber, isDate, isRegExp. + each(['Arguments', 'Function', 'String', 'Number', 'Date', 'RegExp'], function(name) { + _['is' + name] = function(obj) { + return toString.call(obj) == '[object ' + name + ']'; + }; + }); + + // Define a fallback version of the method in browsers (ahem, IE), where + // there isn't any inspectable "Arguments" type. + if (!_.isArguments(arguments)) { + _.isArguments = function(obj) { + return !!(obj && _.has(obj, 'callee')); + }; + } + + // Optimize `isFunction` if appropriate. + if (typeof (/./) !== 'function') { + _.isFunction = function(obj) { + return typeof obj === 'function'; + }; + } + + // Is a given object a finite number? + _.isFinite = function(obj) { + return isFinite(obj) && !isNaN(parseFloat(obj)); + }; + + // Is the given value `NaN`? (NaN is the only number which does not equal itself). + _.isNaN = function(obj) { + return _.isNumber(obj) && obj != +obj; + }; + + // Is a given value a boolean? + _.isBoolean = function(obj) { + return obj === true || obj === false || toString.call(obj) == '[object Boolean]'; + }; + + // Is a given value equal to null? + _.isNull = function(obj) { + return obj === null; + }; + + // Is a given variable undefined? + _.isUndefined = function(obj) { + return obj === void 0; + }; + + // Shortcut function for checking if an object has a given property directly + // on itself (in other words, not on a prototype). + _.has = function(obj, key) { + return hasOwnProperty.call(obj, key); + }; + + // Utility Functions + // ----------------- + + // Run Underscore.js in *noConflict* mode, returning the `_` variable to its + // previous owner. Returns a reference to the Underscore object. + _.noConflict = function() { + root._ = previousUnderscore; + return this; + }; + + // Keep the identity function around for default iterators. + _.identity = function(value) { + return value; + }; + + // Run a function **n** times. + _.times = function(n, iterator, context) { + var accum = Array(n); + for (var i = 0; i < n; i++) accum[i] = iterator.call(context, i); + return accum; + }; + + // Return a random integer between min and max (inclusive). + _.random = function(min, max) { + if (max == null) { + max = min; + min = 0; + } + return min + (0 | Math.random() * (max - min + 1)); + }; + + // List of HTML entities for escaping. + var entityMap = { + escape: { + '&': '&', + '<': '<', + '>': '>', + '"': '"', + "'": ''', + '/': '/' + } + }; + entityMap.unescape = _.invert(entityMap.escape); + + // Regexes containing the keys and values listed immediately above. + var entityRegexes = { + escape: new RegExp('[' + _.keys(entityMap.escape).join('') + ']', 'g'), + unescape: new RegExp('(' + _.keys(entityMap.unescape).join('|') + ')', 'g') + }; + + // Functions for escaping and unescaping strings to/from HTML interpolation. + _.each(['escape', 'unescape'], function(method) { + _[method] = function(string) { + if (string == null) return ''; + return ('' + string).replace(entityRegexes[method], function(match) { + return entityMap[method][match]; + }); + }; + }); + + // If the value of the named property is a function then invoke it; + // otherwise, return it. + _.result = function(object, property) { + if (object == null) return null; + var value = object[property]; + return _.isFunction(value) ? value.call(object) : value; + }; + + // Add your own custom functions to the Underscore object. + _.mixin = function(obj) { + each(_.functions(obj), function(name){ + var func = _[name] = obj[name]; + _.prototype[name] = function() { + var args = [this._wrapped]; + push.apply(args, arguments); + return result.call(this, func.apply(_, args)); + }; + }); + }; + + // Generate a unique integer id (unique within the entire client session). + // Useful for temporary DOM ids. + var idCounter = 0; + _.uniqueId = function(prefix) { + var id = '' + ++idCounter; + return prefix ? prefix + id : id; + }; + + // By default, Underscore uses ERB-style template delimiters, change the + // following template settings to use alternative delimiters. + _.templateSettings = { + evaluate : /<%([\s\S]+?)%>/g, + interpolate : /<%=([\s\S]+?)%>/g, + escape : /<%-([\s\S]+?)%>/g + }; + + // When customizing `templateSettings`, if you don't want to define an + // interpolation, evaluation or escaping regex, we need one that is + // guaranteed not to match. + var noMatch = /(.)^/; + + // Certain characters need to be escaped so that they can be put into a + // string literal. + var escapes = { + "'": "'", + '\\': '\\', + '\r': 'r', + '\n': 'n', + '\t': 't', + '\u2028': 'u2028', + '\u2029': 'u2029' + }; + + var escaper = /\\|'|\r|\n|\t|\u2028|\u2029/g; + + // JavaScript micro-templating, similar to John Resig's implementation. + // Underscore templating handles arbitrary delimiters, preserves whitespace, + // and correctly escapes quotes within interpolated code. + _.template = function(text, data, settings) { + settings = _.defaults({}, settings, _.templateSettings); + + // Combine delimiters into one regular expression via alternation. + var matcher = new RegExp([ + (settings.escape || noMatch).source, + (settings.interpolate || noMatch).source, + (settings.evaluate || noMatch).source + ].join('|') + '|$', 'g'); + + // Compile the template source, escaping string literals appropriately. + var index = 0; + var source = "__p+='"; + text.replace(matcher, function(match, escape, interpolate, evaluate, offset) { + source += text.slice(index, offset) + .replace(escaper, function(match) { return '\\' + escapes[match]; }); + + if (escape) { + source += "'+\n((__t=(" + escape + "))==null?'':_.escape(__t))+\n'"; + } + if (interpolate) { + source += "'+\n((__t=(" + interpolate + "))==null?'':__t)+\n'"; + } + if (evaluate) { + source += "';\n" + evaluate + "\n__p+='"; + } + index = offset + match.length; + return match; + }); + source += "';\n"; + + // If a variable is not specified, place data values in local scope. + if (!settings.variable) source = 'with(obj||{}){\n' + source + '}\n'; + + source = "var __t,__p='',__j=Array.prototype.join," + + "print=function(){__p+=__j.call(arguments,'');};\n" + + source + "return __p;\n"; + + try { + var render = new Function(settings.variable || 'obj', '_', source); + } catch (e) { + e.source = source; + throw e; + } + + if (data) return render(data, _); + var template = function(data) { + return render.call(this, data, _); + }; + + // Provide the compiled function source as a convenience for precompilation. + template.source = 'function(' + (settings.variable || 'obj') + '){\n' + source + '}'; + + return template; + }; + + // Add a "chain" function, which will delegate to the wrapper. + _.chain = function(obj) { + return _(obj).chain(); + }; + + // OOP + // --------------- + // If Underscore is called as a function, it returns a wrapped object that + // can be used OO-style. This wrapper holds altered versions of all the + // underscore functions. Wrapped objects may be chained. + + // Helper function to continue chaining intermediate results. + var result = function(obj) { + return this._chain ? _(obj).chain() : obj; + }; + + // Add all of the Underscore functions to the wrapper object. + _.mixin(_); + + // Add all mutator Array functions to the wrapper. + each(['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'], function(name) { + var method = ArrayProto[name]; + _.prototype[name] = function() { + var obj = this._wrapped; + method.apply(obj, arguments); + if ((name == 'shift' || name == 'splice') && obj.length === 0) delete obj[0]; + return result.call(this, obj); + }; + }); + + // Add all accessor Array functions to the wrapper. + each(['concat', 'join', 'slice'], function(name) { + var method = ArrayProto[name]; + _.prototype[name] = function() { + return result.call(this, method.apply(this._wrapped, arguments)); + }; + }); + + _.extend(_.prototype, { + + // Start chaining a wrapped Underscore object. + chain: function() { + this._chain = true; + return this; + }, + + // Extracts the result from a wrapped and chained object. + value: function() { + return this._wrapped; + } + + }); + +}).call(this); -- cgit v1.2.3