Created
June 17, 2010 08:27
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// selectorSupported lovingly lifted from the mad italian genius, diego perini | |
// http://javascript.nwbox.com/CSSSupport/ | |
function selectorSupported(selector){ | |
var support, link, sheet, doc = document, | |
root = doc.documentElement, | |
head = root.getElementsByTagName('head')[0], | |
impl = doc.implementation || { | |
hasFeature: function() { | |
return false; | |
} | |
}, | |
link = doc.createElement("style"); | |
link.type = 'text/css'; | |
(head || root).insertBefore(link, (head || root).firstChild); | |
sheet = link.sheet || link.styleSheet; | |
if (!(sheet && selector)) return false; | |
support = impl.hasFeature('CSS2', '') ? | |
function(selector) { | |
try { | |
sheet.insertRule(selector + '{ }', 0); | |
sheet.deleteRule(sheet.cssRules.length - 1); | |
} catch (e) { | |
return false; | |
} | |
return true; | |
} : function(selector) { | |
sheet.cssText = selector + ' { }'; | |
return sheet.cssText.length !== 0 && !(/unknown/i).test(sheet.cssText) && sheet.cssText.indexOf(selector) === 0; | |
}; | |
return support(selector); | |
}; | |
Modernizr.addTest('targetselector',function(){ | |
return selectorSupported(':target'); | |
}) | |
I'm sure this works great - but I can implement... an example would be very useful...
can't**
Awesome function, thank you very much.
Also thanks to javier, I wanted to test exaclty what he found, :nth-child(n)
.
This doesn't work on IE9:
>> selectorSupported('div ~ div')
false
>> selectorSupported('div + div')
false
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So I am not sure if anyone cares about this but just in case. I was trying to use this test to see if attribute selectors were supported
input[type='text']
but ie7 was saying that it didn't even though it did. So I checked out how http://www.css3.info/ was doing their selector tests and ripped out some of their stuff.First I have styles defined for
input[type='text'] {padding: 10px}
in an external stylesheet that is loaded before Modernizr. Then I add this test:I could be doing something wrong with the above Gist but in case any one else tries to go down this path maybe this will help you.