I am trying to develop a web which is using Ext JS 4, and hope to use on both the PC client and the Touch Device client, is there any way or any feature in Ext JS 4 that I just convert the event to the gesture from touch?

since there are some drag and drop stuff which is not able to use on the touch devices to interact with.

or basically I have to rewrite in Sencha touch to get to the touch ability?