engine/public/javascripts/admin/plugins/cmd.js

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$.cmd = function(key, callback, args) {
var isCtrl = false;
$(document).keydown(function(e) {
if(!args) args=[]; // IE barks when args is null
if(e.metaKey) isCtrl = true;
if(e.keyCode == key.charCodeAt(0) && isCtrl) {
callback.apply(this, args);
return false;
}
}).keyup(function(e) {
if(e.ctrlKey) isCtrl = false;
});
};