X-Git-Url: http://git.heureux-cyclage.org/?a=blobdiff_plain;f=resources%2Fsrc%2Fstartup.js;h=312e7456988461b24eb9bab7950e7b8b28902177;hb=9af38c046c86a51f82891225e3ea6833566302d4;hp=e53e5f3d2938f16ba9029e4c0bd5f28fb509fa25;hpb=747f6f1b6020da86ff3f9189a9fff74e3cf16bf3;p=lhc%2Fweb%2Fwiklou.git

diff --git a/resources/src/startup.js b/resources/src/startup.js
index e53e5f3d29..312e745698 100644
--- a/resources/src/startup.js
+++ b/resources/src/startup.js
@@ -1,7 +1,7 @@
 /**
- * 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.
+ * Code in this file MUST work on even the most ancient of browsers!
+ *
+ * This file is where we decide whether to initialise the modern run-time.
  */
 /*jshint unused: false, evil: true */
 /*globals mw, RLQ: true, NORLQ: true, $VARS, $CODE, performance */
@@ -15,53 +15,60 @@ var mediaWikiLoadStart = ( new Date() ).getTime(),
 mwPerformance.mark( 'mwLoadStart' );
 
 /**
- * Returns false for Grade C supported browsers.
+ * See <https://www.mediawiki.org/wiki/Compatibility#Browsers>
+ *
+ * Capabilities required for modern run-time:
+ * - DOM Level 4 & Selectors API Level 1
+ * - HTML5 & Web Storage
+ * - DOM Level 2 Events
+ *
+ * Browsers we support in our modern run-time (Grade A):
+ * - Chrome
+ * - IE 9+
+ * - Firefox 3.5+
+ * - Safari 4+
+ * - Opera 10.5+
+ * - Mobile Safari (iOS 1+)
+ * - Android 2.0+
  *
- * This function should only be used by the Startup module, do not expand it to
- * be generally useful beyond startup.
+ * Browsers we support in our no-javascript run-time (Grade C):
+ * - IE 6+
+ * - Firefox 3+
+ * - Safari 3+
+ * - Opera 10+
+ * - WebOS < 1.5
+ * - PlayStation
+ * - Symbian-based browsers
+ * - NetFront-based browser
+ * - Opera Mini
+ * - Nokia's Ovi Browser
+ * - MeeGo's browser
+ * - Google Glass
  *
- * See also:
- * - https://www.mediawiki.org/wiki/Compatibility#Browsers
- * - https://jquery.com/browser-support/
+ * Other browsers that pass the check are considered Grade X.
  */
-function isCompatible( ua ) {
-	if ( ua === undefined ) {
-		ua = navigator.userAgent;
-	}
+function isCompatible( str ) {
+	var ua = str || navigator.userAgent;
+	return !!(
+		// http://caniuse.com/#feat=queryselector
+		'querySelector' in document
+
+		// http://caniuse.com/#feat=namevalue-storage
+		// https://developer.blackberry.com/html5/apis/v1_0/localstorage.html
+		// https://blog.whatwg.org/this-week-in-html-5-episode-30
+		&& 'localStorage' in window
+
+		// http://caniuse.com/#feat=addeventlistener
+		&& 'addEventListener' in window
 
-	// Browsers with outdated or limited JavaScript engines get the no-JS experience
-	return !(
-		// Internet Explorer < 9
-		( ua.indexOf( 'MSIE' ) !== -1 && parseFloat( ua.split( 'MSIE' )[ 1 ] ) < 9 ) ||
-		// 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/ ) )
+		// Hardcoded exceptions for browsers that pass the requirement but we don't want to
+		// support in the modern run-time.
+		&& !(
+			ua.match( /webOS\/1\.[0-4]/ ) ||
+			ua.match( /PlayStation/i ) ||
+			ua.match( /SymbianOS|Series60|NetFront|Opera Mini|S40OviBrowser|MeeGo/ ) ||
+			( ua.match( /Glass/ ) && ua.match( /Android/ ) )
+		)
 	);
 }