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/**
* This script provides a function which is run to evaluate whether or not to
* continue loading jQuery and the MediaWiki modules. This code should work on
* even the most ancient of browsers, so be very careful when editing.
*/
var mediaWikiLoadStart = ( new Date() ).getTime();
if ( !window.performance ) {
window.performance = {};
}
if ( !performance.mark ) {
performance.mark = function () {};
}
performance.mark( 'mediaWikiStartUp' );
/**
* Returns false for Grade C supported browsers.
*
* This function should only be used by the Startup module, do not expand it to
* be generally useful beyond startup.
*
* See also:
* - https://www.mediawiki.org/wiki/Compatibility#Browsers
* - https://jquery.com/browser-support/
*/
/*jshint unused: false, evil: true */
/*globals mw, $VARS, $CODE */
function isCompatible( ua ) {
if ( ua === undefined ) {
ua = navigator.userAgent;
}
// Browsers with outdated or limited JavaScript engines get the no-JS experience
return !(
// Internet Explorer < 8
( ua.indexOf( 'MSIE' ) !== -1 && parseFloat( ua.split( 'MSIE' )[1] ) < 8 ) ||
// Firefox < 3
( ua.indexOf( 'Firefox/' ) !== -1 && parseFloat( ua.split( 'Firefox/' )[1] ) < 3 ) ||
// Opera < 12
( ua.indexOf( 'Opera/' ) !== -1 && ( ua.indexOf( 'Version/' ) === -1 ?
// "Opera/x.y"
parseFloat( ua.split( 'Opera/' )[1] ) < 10 :
// "Opera/9.80 ... Version/x.y"
parseFloat( ua.split( 'Version/' )[1] ) < 12
) ) ||
// "Mozilla/0.0 ... Opera x.y"
( ua.indexOf( 'Opera ' ) !== -1 && parseFloat( ua.split( ' Opera ' )[1] ) < 10 ) ||
// BlackBerry < 6
ua.match( /BlackBerry[^\/]*\/[1-5]\./ ) ||
// Open WebOS < 1.5
ua.match( /webOS\/1\.[0-4]/ ) ||
// Anything PlayStation based.
ua.match( /PlayStation/i ) ||
// Any Symbian based browsers
ua.match( /SymbianOS|Series60/ ) ||
// Any NetFront based browser
ua.match( /NetFront/ ) ||
// Opera Mini, all versions
ua.match( /Opera Mini/ ) ||
// Nokia's Ovi Browser
ua.match( /S40OviBrowser/ ) ||
// MeeGo's browser
ua.match( /MeeGo/ ) ||
// Google Glass browser groks JS but UI is too limited
( ua.match( /Glass/ ) && ua.match( /Android/ ) )
);
}
/**
* The $CODE and $VARS placeholders are substituted in ResourceLoaderStartUpModule.php.
*/
function startUp() {
mw.config = new mw.Map( $VARS.wgLegacyJavaScriptGlobals );
$CODE.registrations();
mw.config.set( $VARS.configuration );
}
// Conditional script injection
if ( isCompatible() ) {
document.write( $VARS.baseModulesScript );
}
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