Store last mouse position in a variable instead of document datastore
It's hundred times faster. See http://jsperf.com/data-vs-variable
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@ -40,7 +40,7 @@
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return;
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}
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var KEY, AbstractSelect2, SingleSelect2, MultiSelect2, nextUid, sizer;
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var KEY, AbstractSelect2, SingleSelect2, MultiSelect2, nextUid, sizer, lastMousePosition;
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KEY = {
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TAB: 9,
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@ -163,7 +163,7 @@
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}
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$(document).delegate("body", "mousemove", function (e) {
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$.data(document, "select2-lastpos", {x: e.pageX, y: e.pageY});
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lastMousePosition = {x: e.pageX, y: e.pageY};
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});
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/**
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@ -174,7 +174,7 @@
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*/
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function installFilteredMouseMove(element) {
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element.bind("mousemove", function (e) {
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var lastpos = $.data(document, "select2-lastpos");
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var lastpos = lastMousePosition;
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if (lastpos === undefined || lastpos.x !== e.pageX || lastpos.y !== e.pageY) {
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$(e.target).trigger("mousemove-filtered", e);
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}
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