TrainSignManage/WebFrame/bower_components/jquery/src/event.js

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define( [
	"./core",
	"./var/document",
	"./var/documentElement",
	"./var/isFunction",
	"./var/rnothtmlwhite",
	"./var/slice",
	"./data/var/dataPriv",
	"./core/nodeName",

	"./core/init",
	"./selector"
], function( jQuery, document, documentElement, isFunction, rnothtmlwhite,
	slice, dataPriv, nodeName ) {

"use strict";

var
	rkeyEvent = /^key/,
	rmouseEvent = /^(?:mouse|pointer|contextmenu|drag|drop)|click/,
	rtypenamespace = /^([^.]*)(?:\.(.+)|)/;

function returnTrue() {
	return true;
}

function returnFalse() {
	return false;
}

// Support: IE <=9 only
// See #13393 for more info
function safeActiveElement() {
	try {
		return document.activeElement;
	} catch ( err ) { }
}

function on( elem, types, selector, data, fn, one ) {
	var origFn, type;

	// Types can be a map of types/handlers
	if ( typeof types === "object" ) {

		// ( types-Object, selector, data )
		if ( typeof selector !== "string" ) {

			// ( types-Object, data )
			data = data || selector;
			selector = undefined;
		}
		for ( type in types ) {
			on( elem, type, selector, data, types[ type ], one );
		}
		return elem;
	}

	if ( data == null && fn == null ) {

		// ( types, fn )