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use classList for class ops where available; ref #2164

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makes it much faster, and also makes adding/removing classes work for
SVG elements
This commit is contained in:
Vladimir Agafonkin 2013-11-12 17:50:45 +02:00
parent edfa2acb70
commit 9babc039f0
1 changed files with 14 additions and 2 deletions
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16
src/dom/DomUtil.js
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@ -104,18 +104,30 @@ L.DomUtil = {
}, },
hasClass: function (el, name) { hasClass: function (el, name) {
if ('classList' in el) {
return el.classList.contains(name);
}
return (el.className.length > 0) && return (el.className.length > 0) &&
new RegExp('(^|\\s)' + name + '(\\s|$)').test(el.className); new RegExp('(^|\\s)' + name + '(\\s|$)').test(el.className);
}, },
addClass: function (el, name) { addClass: function (el, name) {
if (!L.DomUtil.hasClass(el, name)) { if ('classList' in el) {
var classes = L.Util.splitWords(name);
for (var i = 0, len = classes.length; i < len; i++) {
el.classList.add(classes[i]);
}
} else if (!L.DomUtil.hasClass(el, name)) {
el.className += (el.className ? ' ' : '') + name; el.className += (el.className ? ' ' : '') + name;
} }
}, },
removeClass: function (el, name) { removeClass: function (el, name) {
el.className = L.Util.trim((' ' + el.className + ' ').replace(' ' + name + ' ', ' ')); if ('classList' in el) {
el.classList.remove(name);
} else {
el.className = L.Util.trim((' ' + el.className + ' ').replace(' ' + name + ' ', ' '));
}
}, },
setOpacity: function (el, value) { setOpacity: function (el, value) {