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refactor(jqLite): drop Node.contains polyfill

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Node.contains is supported on IE5+ and all the other browsers we care about.
This commit is contained in:
Igor Minar
2014-08-04 20:07:48 -07:00
parent d1536e7c8b
commit 6c4d601ff6
1 changed files with 1 additions and 24 deletions
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25
src/jqLite.js
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@@ -157,29 +157,6 @@ wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.the
wrapMap.th = wrapMap.td;
var elementContains = document.head.contains ||
document.head.compareDocumentPosition
? function( a, b ) {
// jshint bitwise: false
var adown = a.nodeType === 9 ? a.documentElement : a,
bup = b && b.parentNode;
return a === bup || !!( bup && bup.nodeType === 1 && (
adown.contains ?
adown.contains( bup ) :
a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
));
}
: function( a, b ) {
if ( b ) {
while ( (b = b.parentNode) ) {
if ( b === a ) {
return true;
}
}
}
return false;
};
function jqLiteIsTextNode(html) {
return !HTML_REGEXP.test(html);
}
@@ -817,7 +794,7 @@ forEach({
var target = this, related = event.relatedTarget;
// For mousenter/leave call the handler if related is outside the target.
// NB: No relatedTarget if the mouse left/entered the browser window
if ( !related || (related !== target && !elementContains(target, related)) ){
if ( !related || (related !== target && !target.contains(related)) ){
handle(event, type);
}
});