RetailCRM-Mirror/select2
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Store last mouse position in a variable instead of document datastore

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It's hundred times faster. See http://jsperf.com/data-vs-variable
This commit is contained in:
Jean Boussier 2012-09-12 14:47:23 -04:00
parent 96657a16aa
commit 720bdb8c4f
1 changed files with 3 additions and 3 deletions
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6
select2.js
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@ -40,7 +40,7 @@
return; return;
} }
var KEY, AbstractSelect2, SingleSelect2, MultiSelect2, nextUid, sizer; var KEY, AbstractSelect2, SingleSelect2, MultiSelect2, nextUid, sizer, lastMousePosition;
KEY = { KEY = {
TAB: 9, TAB: 9,
@ -163,7 +163,7 @@
} }
$(document).delegate("body", "mousemove", function (e) { $(document).delegate("body", "mousemove", function (e) {
$.data(document, "select2-lastpos", {x: e.pageX, y: e.pageY}); lastMousePosition = {x: e.pageX, y: e.pageY};
}); });
/** /**
@ -174,7 +174,7 @@
*/ */
function installFilteredMouseMove(element) { function installFilteredMouseMove(element) {
element.bind("mousemove", function (e) { element.bind("mousemove", function (e) {
var lastpos = $.data(document, "select2-lastpos"); var lastpos = lastMousePosition;
if (lastpos === undefined || lastpos.x !== e.pageX || lastpos.y !== e.pageY) { if (lastpos === undefined || lastpos.x !== e.pageX || lastpos.y !== e.pageY) {
$(e.target).trigger("mousemove-filtered", e); $(e.target).trigger("mousemove-filtered", e);
} }