+++ /dev/null
-/*
- * User-agent detection
- */
-( function( $ ) {
-$.client = new ( function() {
-
- /* Private Members */
-
- var profile;
-
- /* Public Functions */
-
- /**
- * Returns an object containing information about the browser
- *
- * The resulting client object will be in the following format:
- * {
- * 'name': 'firefox',
- * 'layout': 'gecko',
- * 'layoutVersion': '20101026',
- * 'platform': 'linux'
- * 'version': '3.5.1',
- * 'versionBase': '3',
- * 'versionNumber': 3.5,
- * }
- */
- this.profile = function() {
- // Use the cached version if possible
- if ( typeof profile === 'undefined' ) {
-
- /* Configuration */
-
- // Name of browsers or layout engines we don't recognize
- var uk = 'unknown';
- // Generic version digit
- var x = 'x';
- // Strings found in user agent strings that need to be conformed
- var wildUserAgents = [ 'Opera', 'Navigator', 'Minefield', 'KHTML', 'Chrome', 'PLAYSTATION 3'];
- // Translations for conforming user agent strings
- var userAgentTranslations = [
- // Tons of browsers lie about being something they are not
- [/(Firefox|MSIE|KHTML,\slike\sGecko|Konqueror)/, ''],
- // Chrome lives in the shadow of Safari still
- ['Chrome Safari', 'Chrome'],
- // KHTML is the layout engine not the browser - LIES!
- ['KHTML', 'Konqueror'],
- // Firefox nightly builds
- ['Minefield', 'Firefox'],
- // This helps keep differnt versions consistent
- ['Navigator', 'Netscape'],
- // This prevents version extraction issues, otherwise translation would happen later
- ['PLAYSTATION 3', 'PS3'],
- ];
- // Strings which precede a version number in a user agent string - combined and used as match 1 in
- // version detectection
- var versionPrefixes = [
- 'camino', 'chrome', 'firefox', 'netscape', 'netscape6', 'opera', 'version', 'konqueror', 'lynx',
- 'msie', 'safari', 'ps3'
- ];
- // Used as matches 2, 3 and 4 in version extraction - 3 is used as actual version number
- var versionSuffix = '(\\/|\\;?\\s|)([a-z0-9\\.\\+]*?)(\\;|dev|rel|\\)|\\s|$)';
- // Names of known browsers
- var names = [
- 'camino', 'chrome', 'firefox', 'netscape', 'konqueror', 'lynx', 'msie', 'opera', 'safari', 'ipod',
- 'iphone', 'blackberry', 'ps3'
- ];
- // Tanslations for conforming browser names
- var nameTranslations = [];
- // Names of known layout engines
- var layouts = ['gecko', 'konqueror', 'msie', 'opera', 'webkit'];
- // Translations for conforming layout names
- var layoutTranslations = [['konqueror', 'khtml'], ['msie', 'trident'], ['opera', 'presto']];
- // Names of supported layout engines for version number
- var layoutVersions = ['applewebkit', 'gecko'];
- // Names of known operating systems
- var platforms = ['win', 'mac', 'linux', 'sunos', 'solaris', 'iphone'];
- // Translations for conforming operating system names
- var platformTranslations = [['sunos', 'solaris']];
-
- /* Methods */
-
- // Performs multiple replacements on a string
- function translate( source, translations ) {
- for ( var i = 0; i < translations.length; i++ ) {
- source = source.replace( translations[i][0], translations[i][1] );
- }
- return source;
- };
-
- /* Pre-processing */
-
- var userAgent = navigator.userAgent, match, name = uk, layout = uk, layoutversion = uk, platform = uk, version = x;
- if ( match = new RegExp( '(' + wildUserAgents.join( '|' ) + ')' ).exec( userAgent ) ) {
- // Takes a userAgent string and translates given text into something we can more easily work with
- userAgent = translate( userAgent, userAgentTranslations );
- }
- // Everything will be in lowercase from now on
- userAgent = userAgent.toLowerCase();
-
- /* Extraction */
-
- if ( match = new RegExp( '(' + names.join( '|' ) + ')' ).exec( userAgent ) ) {
- name = translate( match[1], nameTranslations );
- }
- if ( match = new RegExp( '(' + layouts.join( '|' ) + ')' ).exec( userAgent ) ) {
- layout = translate( match[1], layoutTranslations );
- }
- if ( match = new RegExp( '(' + layoutVersions.join( '|' ) + ')\\\/(\\d+)').exec( navigator.userAgent.toLowerCase() ) ) {
- layoutversion = parseInt(match[2]);
- }
- if ( match = new RegExp( '(' + platforms.join( '|' ) + ')' ).exec( navigator.platform.toLowerCase() ) ) {
- platform = translate( match[1], platformTranslations );
- }
- if ( match = new RegExp( '(' + versionPrefixes.join( '|' ) + ')' + versionSuffix ).exec( userAgent ) ) {
- version = match[3];
- }
-
- /* Edge Cases -- did I mention about how user agent string lie? */
-
- // Decode Safari's crazy 400+ version numbers
- if ( name.match( /safari/ ) && version > 400 ) {
- version = '2.0';
- }
- // Expose Opera 10's lies about being Opera 9.8
- if ( name === 'opera' && version >= 9.8) {
- version = userAgent.match( /version\/([0-9\.]*)/i )[1] || 10;
- }
-
- /* Caching */
-
- profile = {
- 'name': name,
- 'layout': layout,
- 'layoutVersion': layoutversion,
- 'platform': platform,
- 'version': version,
- 'versionBase': ( version !== x ? new String( version ).substr( 0, 1 ) : x ),
- 'versionNumber': ( parseFloat( version, 10 ) || 0.0 )
- };
- }
- return profile;
- };
-
- /**
- * Checks the current browser against a support map object to determine if the browser has been black-listed or
- * not. If the browser was not configured specifically it is assumed to work. It is assumed that the body
- * element is classified as either "ltr" or "rtl". If neither is set, "ltr" is assumed.
- *
- * A browser map is in the following format:
- * {
- * 'ltr': {
- * // Multiple rules with configurable operators
- * 'msie': [['>=', 7], ['!=', 9]],
- * // Blocked entirely
- * 'iphone': false
- * },
- * 'rtl': {
- * // Test against a string
- * 'msie': [['!==', '8.1.2.3']],
- * // RTL rules do not fall through to LTR rules, you must explicity set each of them
- * 'iphone': false
- * }
- * }
- *
- * @param map Object of browser support map
- *
- * @return Boolean true if browser known or assumed to be supported, false if blacklisted
- */
- this.test = function( map ) {
- var profile = jQuery.client.profile();
- var dir = jQuery( 'body' ).is( '.rtl' ) ? 'rtl' : 'ltr';
- // Check over each browser condition to determine if we are running in a compatible client
- if ( typeof map[dir] !== 'object' || typeof map[dir][profile.name] === 'undefined' ) {
- // Unknown, so we assume it's working
- return true;
- }
- var name = map[dir][profile.name];
- for ( var condition in name ) {
- var op = name[condition][0];
- var val = name[condition][1];
- if ( val === false ) {
- return false;
- } else if ( typeof val == 'string' ) {
- if ( !( eval( 'profile.version' + op + '"' + val + '"' ) ) ) {
- return false;
- }
- } else if ( typeof val == 'number' ) {
- if ( !( eval( 'profile.versionNumber' + op + val ) ) ) {
- return false;
- }
- }
- }
- return true;
- }
-} )();
-
-$( document ).ready( function() {
- var profile = $.client.profile();
- $( 'html' )
- .addClass( 'client-' + profile.name )
- .addClass( 'client-' + profile.name + '-' + profile.versionBase )
- .addClass( 'client-' + profile.layout )
- .addClass( 'client-' + profile.platform );
-} );
-
-} )( jQuery );
scripts.mit.edu / autoinstallsdev / mediawiki.git / blobdiff