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Don't test for prefixed support. #132

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Don't test for prefixed support. #132

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55 changes: 17 additions & 38 deletions supports.js
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Original file line number Diff line number Diff line change
Expand Up @@ -42,8 +42,6 @@ dummy.setAttribute('data-px', '1px');
document.documentElement.appendChild(dummy);

var _ = window.Supports = {
prefixes: ['', '-moz-', '-webkit-', '-o-', '-ms-', 'ms-', '-khtml-'],

property: function(property) {
if(property.charAt(0) === '-') {
return camelCase(property) in inline? property : false;
Expand All @@ -56,14 +54,10 @@ var _ = window.Supports = {
return _.property.cached[property];
}

for(var i=0; i<_.prefixes.length; i++) {
var prefixed = _.prefixes[i] + property;

if(camelCase(prefixed) in inline) {
return _.property.cached[property] = prefixed;
}
if(camelCase(property) in inline) {
return _.property.cached[property] = property;
}

return _.property.cached[property] = false;
},

Expand All @@ -77,23 +71,18 @@ var _ = window.Supports = {
inline.cssText = '';
inline[property] = '';

for(var i=0; i<_.prefixes.length; i++) {
var prefixed = _.prefixes[i] + value;

try {
inline[property] = prefixed;
} catch(e) {}

if(inline.length > 0) {
return prefixed;
}
try {
inline[property] = value;
} catch(e) {}

if(inline.length > 0) {
return value;
}

return false;
},

descriptorvalue: function(descriptor, value) {
/* doesn't handle prefixes for descriptor or value */
style.textContent = "@font-face {" + descriptor + ":" + value + "}";
return style.sheet.cssRules.length == 1 &&
style.sheet.cssRules[0].style.length == 1;
Expand All @@ -107,15 +96,11 @@ var _ = window.Supports = {
return _.selector.cached[selector];
}

for(var i=0; i<_.prefixes.length; i++) {
var prefixed = selector.replace(/^(:+)/, '$1' + _.prefixes[i]);

try {
document.querySelector(prefixed);
return _.selector.cached[selector] = prefixed;
}
catch (e) {}
try {
document.querySelector(selector);
return _.selector.cached[selector] = selector;
}
catch (e) {}

return _.selector.cached[selector] = false;
},
Expand All @@ -128,17 +113,11 @@ var _ = window.Supports = {
return _.atrule.cached[atrule];
}

for(var i=0; i<_.prefixes.length; i++) {
var prefixed = atrule.replace(/^@/, '@' + _.prefixes[i]);

style.textContent = prefixed + '{}'; // Safari 4 has issues with style.innerHTML

if(style.sheet.cssRules.length > 0) {
return _.atrule.cached[atrule] = prefixed;
}
}

style.textContent = atrule + '{}'; // Safari 4 has issues with style.innerHTML

if(style.sheet.cssRules.length > 0) {
return _.atrule.cached[atrule] = atrule;
}

return _.atrule.cached[atrule] = false;
},
Expand Down