ffzg/rfid/koha-rfid.js

   1 /*
   2  * RFID support for Koha
   3  *
   4  * Writtern by Dobrica Pavlinusic <dpavlin@rot13.org> under GPL v2 or later
   5  *
   6  * This provides example how to intergrate JSONP interface from
   7  *
   8  * scripts/RFID-JSONP-server.pl
   9  *
  10  * to provide overlay for tags in range and emulate form fill for Koha Library System
  11  * which allows check-in and checkout-operations without touching html interface
  12  */
  13
  14 function barcode_on_screen(barcode) {
  15         var found = 0;
  16         $('table tr td a:contains(130)').each( function(i,o) {
  17                 var possible = $(o).text();
  18                 if ( possible == barcode ) found++;
  19         })
  20         return found;
  21 }
  22
  23 var rfid_refresh = 1000; // ms
  24 var rfid_count_timeout = 30; // number of times to scan reader before turning off
  25
  26 rfid_count_timeout = 0; // FIXME disable
  27
  28 function rfid_secure_json(t,val, success) {
  29         if ( t.security.toUpperCase() == val.toUpperCase() ) return success();
  30         rfid_refresh = 0; // disable rfid pull until secure call returns
  31         console.log('rfid_secure_json', t, val);
  32         $.getJSON( '///localhost:9000/secure.js?' + t.sid + '=' + val + ';callback=?', success );
  33 }
  34
  35 function rfid_secure_check(t,val) {
  36         if ( barcode_on_screen(t.content) ) {
  37                 rfid_secure_json(t, val);
  38         }
  39 }
  40
  41
  42 var rfid_reset_field = false;
  43 var rfid_current_sid = false;
  44 var rfid_blank_sid   = false;
  45
  46 function rfid_scan(data,textStatus) {
  47
  48         var rfid_count = $.cookie('rfid_count');
  49         if ( rfid_count === undefined ) {
  50                 rfid_count = rfid_count_timeout;
  51         }
  52
  53         console.debug( 'rfid_scan', data, 'status', textStatus, 'rfid_count', rfid_count);
  54         rfid_current_sid = false;
  55         rfid_blank_sid = false;
  56
  57         var span = $('span#rfid');
  58
  59         if ( span.size() == 0 ) {
  60                 // insert last in language bar on bottom
  61 //              span = $('ul#i18nMenu').append('<li><span id=rfid>RFID reader found<span>');
  62
  63                 // alternative pop-up version
  64                 span = $('#breadcrumbs').append('<div id="rfid_popup" style="position: fixed; bottom: 0; right: 0; background: #fff; border: 0.25em solid #ff0; padding: 0.25em; opacity: 0.9; z-index: 1040; font-size: 200%"><label for="rfid_active"><input type=checkbox id="rfid_active"><!-- local_ip -->&nbsp;<span id="rfid">RFID reader</span><span id="rfid-info"></span></label></div>');
  65                 if ( rfid_count ) $('input#rfid_active').attr('checked',true);
  66                 $('input#rfid_active').click(activate_scan_tags);
  67         }
  68
  69
  70         if ( span.size() == 0 ) // or before login on top
  71                 span = $('div#login').prepend('<span id=rfid>RFID reader found</span>');
  72
  73         span = $('span#rfid');
  74         var info = $('span#rfid-info');
  75
  76
  77         if ( data.tags ) {
  78                 if ( data.tags.length === 1 ) {
  79                         var t = data.tags[0];
  80                         rfid_current_sid = t.sid;
  81
  82 //                      if ( span.text() != t.content ) {
  83                         if ( 1 ) { // force update of security
  84
  85                                 var script_name = document.location.pathname.split(/\//).pop();
  86 //                              var tab_active  = $("#header_search .ui-tabs-panel:not(.ui-tabs-hide)").prop('id');
  87                                 var tab_active  = $("#header_search li[aria-selected=true]").attr('aria-controls');
  88                                 console.debug('tab_active', tab_active);
  89                                 var action =
  90                                         ( script_name == 'circulation.pl' || tab_active == 'circ_search' )   ? 'circulation' :
  91                                         ( script_name == 'returns.pl'     || tab_active == 'checkin_search') ? 'checkin' :
  92                                         'scan';
  93                                 console.debug('script_name', script_name, 'action', action);
  94                                 info.text(action);
  95
  96                                 if ( t.content.length == 0 || t.content == 'UUUUUUUUUUUUUUUU' ) { // blank tag (3M is UUU....)
  97
  98                                         rfid_blank_sid = t.sid;
  99                                         span.text( t.sid + ' blank' ).css('color', 'red' );
 100
 101                                 } else if ( t.content.substr(0,3) == '130' && t.reader == '3M810' ) { // books on 3M reader
 102
 103                                         var color = 'blue';
 104                                         var icon  = '?';
 105                                         if ( t.security.toUpperCase() == 'DA' ) { color = 'red'; icon = '&timesb;' }
 106                                         if ( t.security.toUpperCase() == 'D7' ) { color = 'green'; icon = '&rarr;' }
 107                                         span.html( t.content + '&nbsp;' + icon ).css('color', color);
 108
 109
 110                                         if ( tab_active == 'catalog_search'
 111                                                 && script_name != 'moredetail.pl'
 112                                                 && script_name != 'detail.pl'
 113                                                 && $('input#rfid_active').attr('checked') ) {
 114
 115                                                 if ( $('span.term:contains(bc:'+t.content+')').length == 0 ) {
 116                                                         $.cookie('rfid_count', rfid_count_timeout);
 117                                                         rfid_refresh = 0;
 118                                                         $('input[name=q]')
 119                                                                 .css('background', '#ff0')
 120                                                                 .val( 'bc:' + t.content )
 121                                                                 ;//.closest('form').submit();
 122                                                 }
 123                                         }
 124
 125                                         if ( ! barcode_on_screen( t.content ) || action == 'returns' || action == 'checkin' ) {
 126                                                 rfid_reset_field = 'barcode';
 127
 128                                                 // return must be first to catch change of tab to check-in
 129                                                 var afi_secure =
 130                                                         action == 'returns' ? 'DA' :
 131                                                         action == 'checkin' ? 'DA' :
 132                                                         action == 'FIXME' ? 'D7' :
 133                                                         t.security;
 134                                                 var form_selector = action == 'returns' ? 'first' : 'last';
 135                                                 if ( action == 'returns' || action == 'circulation' || action == 'checkin' ) {
 136
 137                                                         if ( action == 'circulation' && $('#circ_needsconfirmation').length > 0 ) {
 138                                                                 console.log("in circulation, but needs confirmation");
 139                                                         } else {
 140                                                                         var i = $('input[name=barcode]:focus');
 141                                                                         var val = i.val();
 142                                                                         if ( i ) {
 143                                                                                 console.debug('use focus');
 144                                                                         } else {
 145                                                                                 console.debug('use', form_selector);
 146                                                                                 i = $('input[name=barcode]:'+form_selector);
 147                                                                         }
 148                                                                         if ( i.val() != t.content )  {
 149                                                                                 i.css('background', '#0ff' );
 150                                                                                 rfid_secure_json( t, afi_secure, function(data) {
 151                                                                                         console.log('secure', afi_secure, data);
 152                                                                                         $.cookie('rfid_count', 0); // FIXME once? to see change rfid_count_timeout);
 153                                                                                         rfid_refresh = 0;
 154                                                                                         i.css('background',
 155                                                                                                         afi_secure == 'DA' ? '#f00' :
 156                                                                                                         afi_secure == 'D7' ? '#0f0' :
 157                                                                                                                                                  '#0ff'
 158                                                                                                 )
 159                                                                                                 .val( t.content )
 160                                                                                                 ; //.closest('form').submit();
 161                                                                                 });
 162                                                                         }
 163                                                         }
 164                                                 } else {
 165                                                         console.error('not in circulation or returns');
 166                                                 }
 167                                         }
 168
 169                                 } else if ( t.content.substr(0,3) == '130' ) {
 170
 171                                         span.text( 'Please put book on 3M reader!' ).css( 'color', 'red' );
 172
 173                                 } else {
 174                                         span.html( t.content + '&nbsp;&sstarf;' ).css('color', 'blue' );
 175
 176                                         if ( $('.patroninfo:contains('+t.content+')').length == 1 ) {
 177                                                 console.debug('not submitting', t.contains);
 178                                         } else {
 179                                                 rfid_refresh = 0; // stop rfid scan while submitting form
 180                                                 rfid_reset_field = 'findborrower';
 181                                                 $('input[name=findborrower]')
 182                                                         .css('background', '#ff0')
 183                                                         .val( t.content )
 184                                                         ;//.parent().submit();
 185                                         }
 186                                 }
 187                         }
 188                 } else {
 189                         var error = data.tags.length + ' tags near reader: ';
 190                         $.each( data.tags, function(i,tag) { error += tag.content + ' '; } );
 191                         span.text( error ).css( 'color', 'red' );
 192                 }
 193
 194         } else {
 195                 span.text( 'no tags in range' ).css('color','gray');
 196                 if ( rfid_reset_field ) {
 197                         $('input[name='+rfid_reset_field+']').val( '' );
 198                         rfid_reset_field = false;
 199                 }
 200         }
 201
 202
 203         if (rfid_count > 0) rfid_count--;
 204         if (rfid_count == 0) {
 205                 //span.text('RFID reader disabled').css('color','black');
 206                 $('input#rfid_active').attr('checked', false)
 207                 console.log('RFID disabled', rfid_count);
 208         }
 209         $.cookie('rfid_count', rfid_count);
 210
 211 /*
 212         if (rfid_refresh > 1 && $('input#rfid_active').attr('checked') ) {
 213                 window.setTimeout( function() {
 214                         if ( rfid_refresh ) {
 215                                 $('#rfid_popup').css('border','3px solid #ff0');
 216                                 $.getJSON("///localhost:9000/scan?callback=?", rfid_scan);
 217                         } else {
 218                                 console.error('got setTimeout but rfid_refresh', rfid_refresh, ' is not set');
 219                         }
 220                 }, rfid_refresh );
 221         } else {
 222                 console.debug('rfid_refresh disabled',rfid_refresh);
 223         }
 224
 225         $('#rfid_popup').css('border','3px solid #fff');
 226 */
 227 }
 228
 229 function scan_tags() {
 230         console.info('scan_tags');
 231         $.getJSON("///localhost:9000/scan?callback=?", rfid_scan);
 232 }
 233
 234 function set_rfid_active(active) {
 235         var input_active = $('input#rfid_active').attr('checked');
 236         console.info('set_rfid_active', active);
 237         if ( active ) {
 238                 $.cookie('rfid_count', rfid_count_timeout);
 239                 scan_tags();
 240                 if ( ! input_active ) $('input#rfid_active').attr('checked', true);
 241         } else {
 242                 if ( input_active ) $('input#rfid_active').attr('checked', false);
 243                 $.cookie('rfid_count', 0);
 244         }
 245 }
 246
 247 function activate_scan_tags() {
 248         var active = $('input#rfid_active').attr('checked');
 249         console.info('activate_scan_tags', active);
 250         set_rfid_active(active);
 251 }
 252
 253 $(document).ready( function() {
 254         console.log('rfid_active', $('input#rfid_active').attr('checked') );
 255
 256         scan_tags();    // FIXME should we trigger this on page load even if rfid is not active
 257
 258         // circulation keyboard shortcuts (FFZG specific!)
 259         shortcut.add('Alt+r', function() { set_rfid_active(true); } );
 260         shortcut.add('Alt+z', function() { set_rfid_active(true); } );
 261         shortcut.add('Alt+k', function() { set_rfid_active(false) } );
 262         shortcut.add('Alt+y', function() { set_rfid_active(true); } ); // renew
 263
 264         // send RFID tag to currently focused field on screen
 265         shortcut.add('Alt+s', function() {
 266                 var el = $('input:focus');
 267                 var tag = $('span#rfid').text().split(/\s+/)[0];
 268                 console.log('send', el, tag);
 269                 if ( el && tag ) el.css('background', '#ff0').val( tag );
 270         } );
 271
 272         // intranet cataloging
 273         shortcut.add('F4', function() {
 274                 // extract barcode from window title
 275                 var barcode = document.title.split(/\(barcode\s+#|\)/)[1];
 276                 if ( barcode ) {
 277                         if ( ! rfid_blank_sid && rfid_current_sid && confirm('Reprogram this tag to barcode '+barcode) ) {
 278                                 rfid_blank_sid = rfid_current_sid;
 279                         }
 280
 281                         console.debug('program barcode', barcode, 'to', rfid_blank_sid);
 282                         $.getJSON( '///localhost:9000/program?' + rfid_blank_sid + '=' + barcode + ';callback=?', function(data) {
 283                                 console.info('programmed', rfid_blank_sid, barcode, data);
 284                         });
 285                 } else {
 286                         console.error('no barcode in window title');
 287                 }
 288         });
 289
 290 });