public/static/common/js/plugin/slickgrid/lib/jquery.event.drag-2.2.js

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/*! 
 * jquery.event.drag - v 2.2
 * Copyright (c) 2010 Three Dub Media - http://threedubmedia.com
 * Open Source MIT License - http://threedubmedia.com/code/license
 */
// Created: 2008-06-04 
// Updated: 2012-05-21
// REQUIRES: jquery 1.7.x

;(function( $ ){

// add the jquery instance method
$.fn.drag = function( str, arg, opts ){
	// figure out the event type
	var type = typeof str == "string" ? str : "",
	// figure out the event handler...
	fn = $.isFunction( str ) ? str : $.isFunction( arg ) ? arg : null;
	// fix the event type
	if ( type.indexOf("drag") !== 0 ) 
		type = "drag"+ type;
	// were options passed
	opts = ( str == fn ? arg : opts ) || {};
	// trigger or bind event handler
	return fn ? this.bind( type, opts, fn ) : this.trigger( type );
};

// local refs (increase compression)
var $event = $.event, 
$special = $event.special,
// configure the drag special event 
drag = $special.drag = {
	
	// these are the default settings
	defaults: {
		which: 1, // mouse button pressed to start drag sequence
		distance: 0, // distance dragged before dragstart
		not: ':input', // selector to suppress dragging on target elements
		handle: null, // selector to match handle target elements
		relative: false, // true to use "position", false to use "offset"
		drop: true, // false to suppress drop events, true or selector to allow
		click: false // false to suppress click events after dragend (no proxy)
	},
	
	// the key name for stored drag data
	datakey: "dragdata",
	
	// prevent bubbling for better performance
	noBubble: true,
	
	// count bound related events
	add: function( obj ){ 
		// read the interaction data
		var data = $.data( this, drag.datakey ),
		// read any passed options 
		opts = obj.data || {};
		// count another realted event
		data.related += 1;
		// extend data options bound with this event
		// don't iterate "opts" in case it is a node 
		$.each( drag.defaults, function( key, def ){