Use the following code for reversing mouse clicks.
$.extend($.ui.draggable.prototype, {
_mouseInit: function () {
var that = this;
if (!this.options.mouseButton) {
this.options.mouseButton = 1;
}
$.ui.mouse.prototype._mouseInit.apply(this, arguments);
if (this.options.mouseButton === 3) {
this.element.bind("contextmenu." + this.widgetName, function (event) {
if (true === $.data(event.target, that.widgetName + ".preventClickEvent")) {
$.removeData(event.target, that.widgetName + ".preventClickEvent");
event.stopImmediatePropagation();
return false;
}
event.preventDefault();
return false;
});
}
this.started = false;
},
_mouseDown: function (event) {
// we may have missed mouseup (out of window)
(this._mouseStarted && this._mouseUp(event));
this._mouseDownEvent = event;
var that = this,
btnIsLeft = (event.which === this.options.mouseButton),
// event.target.nodeName works around a bug in IE 8 with
// disabled inputs (#7620)
elIsCancel = (typeof this.options.cancel === "string" && event.target.nodeName ? $(event.target).closest(this.options.cancel).length : false);
if (!btnIsLeft || elIsCancel || !this._mouseCapture(event)) {
return true;
}
this.mouseDelayMet = !this.options.delay;
if (!this.mouseDelayMet) {
this._mouseDelayTimer = setTimeout(function () {
that.mouseDelayMet = true;
}, this.options.delay);
}
if (this._mouseDistanceMet(event) && this._mouseDelayMet(event)) {
this._mouseStarted = (this._mouseStart(event) !== false);
if (!this._mouseStarted) {
event.preventDefault();
return true;
}
}
// Click event may never have fired (Gecko & Opera)
if (true === $.data(event.target, this.widgetName + ".preventClickEvent")) {
$.removeData(event.target, this.widgetName + ".preventClickEvent");
}
// these delegates are required to keep context
this._mouseMoveDelegate = function (event) {
return that._mouseMove(event);
};
this._mouseUpDelegate = function (event) {
return that._mouseUp(event);
};
$(document)
.bind("mousemove." + this.widgetName, this._mouseMoveDelegate)
.bind("mouseup." + this.widgetName, this._mouseUpDelegate);
event.preventDefault();
mouseHandled = true;
return true;
}
});
Now at the function calling event use mouseButton : 3 for right click and 1 for left click