7 * Returns an object containing information about the browser
9 * The resulting client object will be in the following format:
16 * 'versionNumber': 3.5,
19 'profile': function() {
20 // Use the cached version if possible
21 if ( typeof this.profile
=== 'undefined' ) {
25 // Name of browsers or layout engines we don't recognize
27 // Generic version digit
29 // Strings found in user agent strings that need to be conformed
30 var wildUserAgents
= [ 'Opera', 'Navigator', 'Minefield', 'KHTML', 'Chrome', 'PLAYSTATION 3'];
31 // Translations for conforming user agent strings
32 var userAgentTranslations
= [
33 // Tons of browsers lie about being something they are not
34 [/(Firefox|MSIE|KHTML,\slike\sGecko|Konqueror)/, ''],
35 // Chrome lives in the shadow of Safari still
36 ['Chrome Safari', 'Chrome'],
37 // KHTML is the layout engine not the browser - LIES!
38 ['KHTML', 'Konqueror'],
39 // Firefox nightly builds
40 ['Minefield', 'Firefox'],
41 // This helps keep differnt versions consistent
42 ['Navigator', 'Netscape'],
43 // This prevents version extraction issues, otherwise translation would happen later
44 ['PLAYSTATION 3', 'PS3'],
46 // Strings which precede a version number in a user agent string - combined and used as match 1 in
47 // version detectection
48 var versionPrefixes
= [
49 'camino', 'chrome', 'firefox', 'netscape', 'netscape6', 'opera', 'version', 'konqueror', 'lynx',
50 'msie', 'safari', 'ps3'
52 // Used as matches 2, 3 and 4 in version extraction - 3 is used as actual version number
53 var versionSuffix
= '(\/|\;?\s|)([a-z0-9\.\+]*?)(\;|dev|rel|\\)|\s|$)';
54 // Names of known browsers
56 'camino', 'chrome', 'firefox', 'netscape', 'konqueror', 'lynx', 'msie', 'opera', 'safari', 'ipod',
57 'iphone', 'blackberry', 'ps3'
59 // Tanslations for conforming browser names
60 var browserTranslations
= [];
61 // Names of known layout engines
62 var layoutNames
= ['gecko', 'konqueror', 'msie', 'opera', 'webkit'];
63 // Translations for conforming layout names
64 var layoutTranslations
= [['konqueror', 'khtml'], ['msie', 'trident'], ['opera', 'presto']];
65 // Names of known operating systems
66 var osNames
= ['win', 'mac', 'linux', 'sunos', 'solaris', 'iphone'];
67 // Translations for conforming operating system names
68 var osTranslations
= [['sunos', 'solaris']];
72 // Performs multiple replacements on a string
73 function translate( source
, translations
) {
74 for ( var i
= 0; i
< translations
.length
; i
++ ) {
75 source
= source
.replace( translations
[i
][0], translations
[i
][1] );
82 var userAgent
= navigator
.userAgent
, match
, browser
= uk
, layout
= uk
, os
= uk
, version
= x
;
83 if ( match
= new RegExp( '(' + wildUserAgents
.join( '|' ) + ')' ).exec( userAgent
) ) {
84 // Takes a userAgent string and translates given text into something we can more easily work with
85 userAgent
= translate( userAgent
, userAgentTranslations
);
87 // Everything will be in lowercase from now on
88 userAgent
= userAgent
.toLowerCase();
92 if ( match
= new RegExp( '(' + browserNames
.join( '|' ) + ')' ).exec( userAgent
) ) {
93 browser
= translate( match
[1], browserTranslations
);
95 if ( match
= new RegExp( '(' + layoutNames
.join( '|' ) + ')' ).exec( userAgent
) ) {
96 layout
= translate( match
[1], layoutTranslations
);
98 if ( match
= new RegExp( '(' + osNames
.join( '|' ) + ')' ).exec( navigator
.platform
.toLowerCase() ) ) {
99 var os
= translate( match
[1], osTranslations
);
101 if ( match
= new RegExp( '(' + versionPrefixes
.join( '|' ) + ')' + versionSuffix
).exec( userAgent
) ) {
105 /* Edge Cases -- did I mention about how user agent string lie? */
107 // Decode Safari's crazy 400+ version numbers
108 if ( name
.match( /safari/ ) && version
> 400 ) {
111 // Expose Opera 10's lies about being Opera 9.8
112 if ( name
=== 'opera' && version
>= 9.8) {
113 version
= userAgent
.match( /version\/([0-9\.]*)/i )[1] || 10;
123 'versionBase': ( version
!== x
? new String( version
).substr( 0, 1 ) : x
),
124 'versionNumber': ( parseFloat( version
, 10 ) || 0.0 )
130 * Checks the current browser against a support map object to determine if the browser has been black-listed or
131 * not. If the browser was not configured specifically it is assumed to work. It is assumed that the body
132 * element is classified as either "ltr" or "rtl". If neither is set, "ltr" is assumed.
134 * A browser map is in the following format:
137 * // Multiple rules with configurable operators
138 * 'msie': [['>=', 7], ['!=', 9]],
139 * // Blocked entirely
143 * // Test against a string
144 * 'msie': [['!==', '8.1.2.3']],
145 * // RTL rules do not fall through to LTR rules, you must explicity set each of them
150 * @param map Object of browser support map
152 * @return Boolean true if browser known or assumed to be supported, false if blacklisted
154 'test': function( map
) {
155 var profile
= $.client
.profile();
156 // Check over each browser condition to determine if we are running in a compatible client
157 var browser
= map
[$( 'body' ).is( '.rtl' ) ? 'rtl' : 'ltr'][profile
.browser
];
158 if ( typeof browser
!== 'object' ) {
159 // Unknown, so we assume it's working
162 for ( var condition
in browser
) {
163 var op
= browser
[condition
][0];
164 var val
= browser
[condition
][1];
165 if ( val
=== false ) {
167 } else if ( typeof val
== 'string' ) {
168 if ( !( eval( 'profile.version' + op
+ '"' + val
+ '"' ) ) ) {
171 } else if ( typeof val
== 'number' ) {
172 if ( !( eval( 'profile.versionNumber' + op
+ val
) ) ) {