vendor-all-the-javascripts/vendor/assets/javascripts/jaaulde.cookies.js

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2011-12-06 20:57:52 +00:00
/**
* jaaulde.cookies.js
*
* Copyright (c) 2005 - 2011, James Auldridge
* All rights reserved.
*
* Licensed under the BSD, MIT, and GPL (your choice!) Licenses:
* @link http://code.google.com/p/cookies/wiki/License
*
*/
( function( global )
{
"use strict";
/* localize globals */
var document = global.document,
Object = global.Object,
JSON = global.JSON,
/* localize first party support */
jaaulde = global.jaaulde = ( global.jaaulde || {} );
/*
* jaaulde.utils Namespace
*/
jaaulde.utils = jaaulde.utils || {};
/*
* The library
*/
jaaulde.utils.cookies = ( function()
{
var defaultOptions,
resolveOptions, assembleOptionsString, isNaN, trim, parseCookies, Constructor;
defaultOptions = {
expiresAt: null,
path: '/',
domain: null,
secure: false
};
resolveOptions = function( options )
{
var returnValue, expireDate;
if( typeof options !== 'object' || options === null )
{
returnValue = defaultOptions;
}
else
{
returnValue = {
expiresAt: defaultOptions.expiresAt,
path: defaultOptions.path,
domain: defaultOptions.domain,
secure: defaultOptions.secure
};
if( typeof options.expiresAt === 'object' && options.expiresAt instanceof Date )
{
returnValue.expiresAt = options.expiresAt;
}
else if( typeof options.hoursToLive === 'number' && options.hoursToLive !== 0 )
{
expireDate = new global.Date();
expireDate.setTime( expireDate.getTime() + ( options.hoursToLive * 60 * 60 * 1000 ) );
returnValue.expiresAt = expireDate;
}
if( typeof options.path === 'string' && options.path !== '' )
{
returnValue.path = options.path;
}
if( typeof options.domain === 'string' && options.domain !== '' )
{
returnValue.domain = options.domain;
}
if( options.secure === true )
{
returnValue.secure = options.secure;
}
}
return returnValue;
};
assembleOptionsString = function( options )
{
options = resolveOptions( options );
return (
( typeof options.expiresAt === 'object' && options.expiresAt instanceof Date ? '; expires=' + options.expiresAt.toGMTString() : '' ) +
'; path=' + options.path +
( typeof options.domain === 'string' ? '; domain=' + options.domain : '' ) +
( options.secure === true ? '; secure' : '' )
);
};
/**
* Some logic borrowed from http://jquery.com/
*/
trim = global.String.prototype.trim ?
function( data )
{
return global.String.prototype.trim.call( data );
} :
( function()
{
var trimLeft, trimRight;
trimLeft = /^\s+/;
trimRight = /\s+$/;
return function( data )
{
return data.replace( trimLeft, '' ).replace( trimRight, '' );
};
}() );
/**
* Borrowed from http://jquery.com/
*/
isNaN = ( function()
{
var rdigit = /\d/, isNaN = global.isNaN;
return function( obj )
{
return ( obj === null || ! rdigit.test( obj ) || isNaN( obj ) );
};
}() );
parseCookies = ( function()
{
var parseJSON, rbrace;
parseJSON = JSON && JSON.parse ?
function( data )
{
var returnValue = null;
if( typeof data === 'string' && data !== '' )
{
// Make sure leading/trailing whitespace is removed (IE can't handle it)
data = trim( data );
if( data !== '' )
{
try
{
returnValue = JSON.parse( data );
}
catch( e1 )
{
returnValue = null;
}
}
}
return returnValue;
} :
function()
{
return null;
};
rbrace = /^(?:\{.*\}|\[.*\])$/;
return function()
{
var cookies, splitOnSemiColons, cookieCount, i, splitOnEquals, name, rawValue, value;
cookies = {};
splitOnSemiColons = document.cookie.split( ';' );
cookieCount = splitOnSemiColons.length;
for( i = 0; i < cookieCount; i = i + 1 )
{
splitOnEquals = splitOnSemiColons[i].split( '=' );
name = trim( splitOnEquals.shift() );
if( splitOnEquals.length >= 1 )
{
rawValue = splitOnEquals.join( '=' );
}
else
{
rawValue = '';
}
try
{
value = decodeURIComponent( rawValue );
}
catch( e2 )
{
value = rawValue;
}
//Logic borrowed from http://jquery.com/ dataAttr method
try
{
value = value === 'true' ?
true :
value === 'false' ?
false :
! isNaN( value ) ?
parseFloat( value ) :
rbrace.test( value ) ?
parseJSON( value ) :
value;
}
catch( e3 ) {}
cookies[name] = value;
}
return cookies;
};
}() );
Constructor = function(){};
/**
* get - get one, several, or all cookies
*
* @access public
* @paramater Mixed cookieName - String:name of single cookie; Array:list of multiple cookie names; Void (no param):if you want all cookies
* @return Mixed - Value of cookie as set; Null:if only one cookie is requested and is not found; Object:hash of multiple or all cookies (if multiple or all requested);
*/
Constructor.prototype.get = function( cookieName )
{
var returnValue, item, cookies;
cookies = parseCookies();
if( typeof cookieName === 'string' )
{
returnValue = ( typeof cookies[cookieName] !== 'undefined' ) ? cookies[cookieName] : null;
}
else if( typeof cookieName === 'object' && cookieName !== null )
{
returnValue = {};
for( item in cookieName )
{
if( Object.prototype.hasOwnProperty.call( cookieName, item ) )
{
if( typeof cookies[cookieName[item]] !== 'undefined' )
{
returnValue[cookieName[item]] = cookies[cookieName[item]];
}
else
{
returnValue[cookieName[item]] = null;
}
}
}
}
else
{
returnValue = cookies;
}
return returnValue;
};
/**
* filter - get array of cookies whose names match the provided RegExp
*
* @access public
* @paramater Object RegExp - The regular expression to match against cookie names
* @return Mixed - Object:hash of cookies whose names match the RegExp
*/
Constructor.prototype.filter = function( cookieNameRegExp )
{
var cookieName, returnValue, cookies;
returnValue = {};
cookies = parseCookies();
if( typeof cookieNameRegExp === 'string' )
{
cookieNameRegExp = new RegExp( cookieNameRegExp );
}
for( cookieName in cookies )
{
if( Object.prototype.hasOwnProperty.call( cookies, cookieName ) && cookieName.match( cookieNameRegExp ) )
{
returnValue[cookieName] = cookies[cookieName];
}
}
return returnValue;
};
/**
* set - set or delete a cookie with desired options
*
* @access public
* @paramater String cookieName - name of cookie to set
* @paramater Mixed value - Any JS value. If not a string, will be JSON encoded (http://code.google.com/p/cookies/wiki/JSON); NULL to delete
* @paramater Object options - optional list of cookie options to specify
* @return void
*/
Constructor.prototype.set = function( cookieName, value, options )
{
if( typeof options !== 'object' || options === null )
{
options = {};
}
// TODO: consider value serialization method to parallel parse cookies
if( typeof value === 'undefined' || value === null )
{
value = '';
options.hoursToLive = -8760;
}
else
{
//Logic borrowed from http://jquery.com/ dataAttr method and reversed
value = value === true ?
'true' :
value === false ?
'false' :
! isNaN( value ) ?
'' + value :
value;
if( typeof value !== 'string' )
{
if( typeof JSON === 'object' && JSON !== null && typeof JSON.stringify === 'function' )
{
value = JSON.stringify( value );
}
else
{
throw new Error( 'cookies.set() received value which could not be serialized.' );
}
}
}
var optionsString = assembleOptionsString( options );
document.cookie = cookieName + '=' + encodeURIComponent( value ) + optionsString;
};
/**
* del - delete a cookie (domain and path options must match those with which the cookie was set; this is really an alias for set() with parameters simplified for this use)
*
* @access public
* @paramater MIxed cookieName - String name of cookie to delete, or Bool true to delete all
* @paramater Object options - optional list of cookie options to specify ( path, domain )
* @return void
*/
Constructor.prototype.del = function( cookieName, options )
{
var allCookies, name;
allCookies = {};
if( typeof options !== 'object' || options === null )
{
options = {};
}
if( typeof cookieName === 'boolean' && cookieName === true )
{
allCookies = this.get();
}
else if( typeof cookieName === 'string' )
{
allCookies[cookieName] = true;
}
for( name in allCookies )
{
if( Object.prototype.hasOwnProperty.call( allCookies, name ) && typeof name === 'string' && name !== '' )
{
this.set( name, null, options );
}
}
};
/**
* test - test whether the browser is accepting cookies
*
* @access public
* @return Boolean
*/
Constructor.prototype.test = function()
{
var returnValue, testName, testValue;
testName = 'cookiesCT';
testValue = 'data';
this.set( testName, testValue );
if( this.get( testName ) === testValue )
{
this.del( testName );
returnValue = true;
}
return returnValue;
};
/**
* setOptions - set default options for calls to cookie methods
*
* @access public
* @param Object options - list of cookie options to specify
* @return void
*/
Constructor.prototype.setOptions = function( options )
{
if( typeof options !== 'object' )
{
options = null;
}
defaultOptions = resolveOptions( options );
};
return new Constructor();
}() );
}( window ) );