/*
* RFID support for Koha
*
* Writtern by Dobrica Pavlinusic <dpavlin@rot13.org> under GPL v2 or later
*
* This provides example how to intergrate JSONP interface from
*
* scripts/RFID-JSONP-server.pl
*
* to provide overlay for tags in range and emulate form fill for Koha Library System
* which allows check-in and checkout-operations without touching html interface
*
* You will have to inject remote javascript in Koha intranetuserjs using:
<!-- this is basically remote script injection, doesn't work in Chrome with SSL -->
//]]></script>
<!-- invoke local RFID javascript -->
<script type="text/javascript"
src="http://localhost:9000/examples/koha-rfid.js"
>
<script type="text/javascript">
//<![CDATA[
*/
function barcode_on_screen(barcode) {
var found = 0;
$('table tr td a:contains(130)').each( function(i,o) {
var possible = $(o).text();
console.debug(i,o,possible, barcode);
if ( possible == barcode ) found++;
})
return found;
}
function rfid_secure(barcode,sid,val) {
console.debug('rfid_secure', barcode, sid, val);
if ( barcode_on_screen(barcode) )
$.getJSON( 'http://localhost:9000/secure.js?' + sid + '=' + val + ';callback=?' )
}
var rfid_reset_field = false;
function rfid_scan(data,textStatus) {
// console.debug( 'rfid_scan', data, textStatus );
var span = $('span#rfid');
if ( span.size() == 0 ) {
$('ul#i18nMenu').append('<li><span id=rfid>RFID reader found<span>');
span = $('span#rfid');
}
if ( data.tags ) {
if ( data.tags.length === 1 ) {
var t = data.tags[0];
// if ( span.text() != t.content ) {
if ( 1 ) { // force update of security
var url = document.location.toString();
var circulation = url.substr(-14,14) == 'circulation.pl';
var returns = url.substr(-10,10) == 'returns.pl';
if ( t.content.substr(0,3) == '130' ) {
if ( circulation )
rfid_secure( t.content, t.sid, 'D7' );
if ( returns )
rfid_secure( t.content, t.sid, 'DA' );
var color = 'blue';
if ( t.security.toUpperCase() == 'DA' ) color = 'red';
if ( t.security.toUpperCase() == 'D7' ) color = 'green';
span.text( t.content ).css('color', color);
if ( ! barcode_on_screen( t.content ) ) {
rfid_reset_field = 'barcode';
var i = $('input[name=barcode]:last');
if ( i.val() != t.content )
i.val( t.content )
.closest('form').submit();
}
} else {
span.text( t.content ).css('color', 'blue' );
if ( url.substr(-14,14) != 'circulation.pl' || $('form[name=mainform]').size() == 0 ) {
rfid_reset_field = 'findborrower';
$('input[name=findborrower]').val( t.content )
.parent().submit();
}
}
}
} else {
var error = data.tags.length + ' tags near reader: ';
$.each( data.tags, function(i,tag) { error += tag.content + ' '; } );
span.text( error ).css( 'color', 'red' );
}
} else {
span.text( 'no tags in range' ).css('color','gray');
if ( rfid_reset_field ) {
$('input[name='+rfid_reset_field+']').val( '' );
rfid_reset_field = false;
}
}
window.setTimeout( function() {
$.getJSON("http://localhost:9000/scan?callback=?", rfid_scan);
}, 1000 ); // 1000ms
}
$(document).ready( function() {
$.getJSON("http://localhost:9000/scan?callback=?", rfid_scan);
});