RetailCRM-Mirror/select2
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Improve performance on text measuring

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Signed-off-by: Igor Vaynberg <igor.vaynberg@gmail.com>
This commit is contained in:
creage 2012-06-16 22:14:46 +03:00 committed by Igor Vaynberg
parent 0ff41ca512
commit 65eb7c3404
1 changed files with 21 additions and 22 deletions
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13
select2.js
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@ -40,7 +40,7 @@
return; return;
} }
var KEY, AbstractSelect2, SingleSelect2, MultiSelect2, nextUid; var KEY, AbstractSelect2, SingleSelect2, MultiSelect2, nextUid, sizer;
KEY = { KEY = {
TAB: 9, TAB: 9,
@ -202,8 +202,8 @@
} }
function measureTextWidth(e) { function measureTextWidth(e) {
var sizer, width, var style = e.currentStyle || window.getComputedStyle(e, null);
style = e.currentStyle || window.getComputedStyle(e, null); if (!sizer){
sizer = $("<div></div>").css({ sizer = $("<div></div>").css({
position: "absolute", position: "absolute",
left: "-1000px", left: "-1000px",
@ -217,11 +217,10 @@
textTransform: style.textTransform, textTransform: style.textTransform,
whiteSpace: "nowrap" whiteSpace: "nowrap"
}); });
sizer.text(e.val());
$("body").append(sizer); $("body").append(sizer);
width = sizer.width(); }
sizer.remove(); sizer.text(e.val());
return width; return sizer.width();
} }
/** /**