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//* The Thisfollowing function checks whether or not the user has configured the fingerprint scanner.
*  Here, CFEC.CLICK is the Canvas event that can be used to capture the button clicked action.
*  AVAIL is the form item ID for the "AVAIL FINGERPRINT SCANNER" button. 
*/ 
this.fm.registerHandler("cbxclick"CFEC.CLICK, "AVAIL", 
                       	function (fm, event, fieldName, value) 
						{
            				canvas.env.util.fingerPrint.isAvailable(SuccessCallback, ErrorCallback);
        				});

/* To authenticate the fingerprint, *the  Thisfollowing method opens a native dialog fragment 
*  to use the device hardware fingerprint scanner 
* to authenticate against fingerprints 
*  registered for the device.
*  Here, CFEC.CLICK is the Canvas event that can be used to capture the button clicked action.
*  AVAIL is the form item ID for the "AVAIL FINGERPRINT SCANNER" button.
*/
this.fm.registerHandler("cbxclick"CFEC.CLICK, "AUTHENTICATE",  
                        function (fm, event, fieldName, value) 
						{
            				var params = 
							{
                				buttonLabel: "Enter your PIN", 
								popupMessage: "Please scan your fingerprint",
								clientSecret: "Used to encrypt the token returned upon successful fingerprint authentication.",
								clientId: "Used as the alias for your key in the Android Key Store"
            				};
            				canvas.env.util.fingerPrint.authenticate(params, successCallback, errorCallback);
        				});


/* SuccessCallback will get callcalled only ifwhen the fingerprint or touch ID is available on a device. 
*  If the SuccessCallback handler was called, you can scan the fingerprint.
*/
function SuccessCallback(result) 
{
    showAlert("available");
}

// ErrorCallback will get callcalled if the device has no touch TouchIDID available.
function ErrorCallback(error) 
{
    showAlert("not available:" + error);
}