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         // FIXME: don't work without checkbox, probably broken
  16         var found = 0;
  17         $('table tr td a:contains(130)').each( function(i,o) {
  18                 var possible = $(o).text();
  19                 if ( possible == barcode ) found++;
  20         })
  21         return found;
  22 }
  23
  24 var rfid_refresh = 200; // ms
  25 var rfid_count_timeout = 1; // number of times to scan reader before turning off
  26
  27
  28 function rfid_secure_json(t,val, success) {
  29         if ( t.security.toUpperCase() == val.toUpperCase() ) return success({ verified: val });
  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
  36
  37 var rfid_reset_field = false;
  38 var rfid_current_sid = false;
  39 var rfid_blank_sid   = false;
  40 var rfid_action = undefined;
  41
  42 function rfid_scan(data,textStatus) {
  43
  44         var rfid_count = $.cookie('rfid_count');
  45         if ( rfid_count === undefined ) {
  46                 rfid_count = rfid_count_timeout;
  47         }
  48
  49         console.debug( 'rfid_scan', data, 'status', textStatus, 'rfid_count', rfid_count);
  50         rfid_current_sid = false;
  51         rfid_blank_sid = false;
  52
  53         var span = $('span#rfid');
  54
  55         if ( span.size() == 0 ) {
  56                 // insert last in language bar on bottom
  57 //              span = $('ul#i18nMenu').append('<li><span id=rfid>RFID reader found<span>');
  58
  59                 // alternative pop-up version
  60                 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>&nbsp;<span id="rfid-info"></span></label></div>');
  61                 if ( rfid_count ) $('input#rfid_active').attr('checked',true);
  62                 $('input#rfid_active').click(activate_scan_tags); // FIXME don't activate actions on page load
  63         }
  64
  65
  66         if ( span.size() == 0 ) // or before login on top
  67                 span = $('div#login').prepend('<span id=rfid>RFID reader found</span>');
  68
  69         span = $('span#rfid');
  70         var info = $('span#rfid-info');
  71
  72
  73         if ( data.tags ) {
  74                 if ( data.tags.length === 1 ) {
  75                         var t = data.tags[0];
  76                         rfid_current_sid = t.sid;
  77
  78 //                      if ( span.text() != t.content ) {
  79                         if ( 1 ) { // force update of security
  80
  81                                 var script_name = document.location.pathname.split(/\//).pop();
  82                                 var tab_active  = $("#header_search li[aria-selected=true]").attr('aria-controls');
  83                                 var focused_form = $('input:focus').first().name;
  84                                 var action =
  85                                         rfid_action                                                          ? rfid_action :
  86                                         ( script_name == 'returns.pl'     || tab_active == 'checkin_search') ? 'checkin' : // must be before circulation
  87                                         ( script_name == 'circulation.pl' || tab_active == 'circ_search' )   ? 'circulation' :
  88                     'scan';
  89                                 rfid_action = undefined; // one-shot
  90                                 console.debug('script_name', script_name, 'tab_active', tab_active, 'action', action, 'focused_form', focused_form );
  91                                 info.text(action);
  92
  93                                 if ( t.content.length == 0 || t.content == 'UUUUUUUUUUUUUUUU' ) { // blank tag (3M is UUU....)
  94
  95                                         rfid_blank_sid = t.sid;
  96                                         span.text( t.sid + ' blank' ).css('color', 'red' );
  97
  98                                 } else if ( t.content.substr(0,3) == '130' && t.reader == '3M810' ) { // books on 3M reader
  99
 100                                         var color = 'blue';
 101                                         var icon  = '?';
 102                                         if ( t.security.toUpperCase() == 'DA' ) { color = 'red'; icon = '&timesb;' }
 103                                         if ( t.security.toUpperCase() == 'D7' ) { color = 'green'; icon = '&rarr;' }
 104                                         span.html( t.content + '&nbsp;' + icon ).css('color', color);
 105
 106
 107                                         if ( tab_active == 'catalog_search'
 108                                                 && script_name != 'moredetail.pl'
 109                                                 && script_name != 'detail.pl'
 110                                                 && $('input#rfid_active').attr('checked') ) {
 111
 112                                                 if ( $('span.term:contains(bc:'+t.content+')').length == 0 ) {
 113                                                         $.cookie('rfid_count', rfid_count_timeout);
 114                                                         rfid_refresh = 0;
 115                                                         $('input[name=q]')
 116                                                                 .css('background', '#ff0')
 117                                                                 .val( 'bc:' + t.content )
 118                                                                 ;//.closest('form').submit();
 119                                                 }
 120                                         }
 121
 122                                         if ( action == 'returns' || action == 'checkin' || action == 'circulation' ) {
 123                                                 rfid_reset_field = 'barcode';
 124
 125                                                 // return must be first to catch change of tab to check-in
 126                                                 var afi_secure =
 127                                                         action == 'checkin' ? 'DA' :
 128                                                         action == 'circulation' ? 'D7' :
 129                                                         t.security;
 130
 131                                                 var form_selector =
 132                                                         script_name == 'returns.pl' ? 'last' : 'first';
 133
 134                                                 var i = $('input[name=barcode]:focus');
 135                                                 if ( i.length == 1 ) {
 136                                                         i.css('background', '#ff0');
 137                                                         console.log('input barcode focus', i, i.val());
 138                                                 } else {
 139                                                         i = $('input[name=barcode]:'+form_selector).first();
 140                                                         i.css('background', '#ff0');
 141                                                         console.log('input barcode', form_selector, i, i.val());
 142                                                 }
 143
 144                                                 if ( action == 'circulation' && $('#circ_needsconfirmation').length > 0 ) {
 145                                                         console.log("in circulation, but needs confirmation");
 146                                                 } else if (i) {
 147
 148                                                         console.debug('val', i.val(), 'name', i.name, 'i', i);
 149
 150                                                         if ( i.val() != t.content ) { // && i.name == 'barcode' )  {
 151                                                                 i.css('background', '#0ff' );
 152                                                                 rfid_secure_json( t, afi_secure, function(data) {
 153                                                                         console.log('secure', afi_secure, data);
 154                                                                         $.cookie('rfid_count', 0); // FIXME once? to see change rfid_count_timeout);
 155                                                                         rfid_refresh = 0;
 156                                                                         i.css('background',
 157                                                                                         afi_secure == 'DA' ? '#f00' :
 158                                                                                         afi_secure == 'D7' ? '#0f0' :
 159                                                                                                                                 '#0ff'
 160                                                                                 )
 161                                                                                 .val( t.content )
 162                                                                                 .closest('form').submit();
 163                                                                 });
 164                                                         } else {
 165                                                                 console.error('not using element', i);
 166                                                         }
 167                                                 } else {
 168                                                         console.error('element not found', i);
 169                                                 }
 170
 171                                         } else {
 172                                                 console.debug(action, 'no form submit');
 173                                         }
 174
 175                                 } else if ( t.content.substr(0,3) == '130' ) {
 176
 177                                         span.text( 'Please put book on 3M reader!' ).css( 'color', 'red' );
 178
 179                                 } else {
 180                                         span.html( t.content + '&nbsp;&sstarf;' ).css('color', 'blue' );
 181
 182                                         if ( $('.patroninfo:contains('+t.content+')').length == 1 ) {
 183                                                 console.debug('not submitting', t.contains);
 184                                         } else {
 185                                                 rfid_refresh = 0; // stop rfid scan while submitting form
 186                                                 rfid_reset_field = 'findborrower';
 187                                                 $('input[name=findborrower]')
 188                                                         .css('background', '#00f')
 189                                                         .val( t.content )
 190                                                         ;//.parent().submit();
 191                                         }
 192                                 }
 193                         }
 194                 } else {
 195                         var error = data.tags.length + ' tags near reader: ';
 196                         $.each( data.tags, function(i,tag) { error += tag.content + ' '; } );
 197                         span.text( error ).css( 'color', 'red' );
 198                 }
 199
 200         } else {
 201                 span.text( 'no tags in range' ).css('color','gray');
 202                 if ( rfid_reset_field ) {
 203                         $('input[name='+rfid_reset_field+']').val( '' );
 204                         rfid_reset_field = false;
 205                 }
 206         }
 207
 208         if (rfid_count > 0) rfid_count--;
 209         if (rfid_count == 0) {
 210                 //span.text('RFID reader disabled').css('color','black');
 211                 $('input#rfid_active').attr('checked', false)
 212                 console.log('RFID disabled', rfid_count);
 213         }
 214         $.cookie('rfid_count', rfid_count);
 215
 216         if (rfid_refresh > 1 && $('input#rfid_active').attr('checked') ) {
 217                 window.setTimeout( function() {
 218                         if ( rfid_refresh ) {
 219                                 $('#rfid_popup').css('border','3px solid #ff0');
 220                                 $.getJSON("///localhost:9000/scan?callback=?", rfid_scan);
 221                         } else {
 222                                 console.error('got setTimeout but rfid_refresh', rfid_refresh, ' is not set');
 223                         }
 224                 }, rfid_refresh );
 225         } else {
 226                 console.debug('rfid_refresh disabled',rfid_refresh);
 227         }
 228
 229         $('#rfid_popup').css('border','3px solid #fff');
 230
 231 }
 232
 233 function scan_tags() {
 234         console.info('scan_tags');
 235         $.getJSON("///localhost:9000/scan?callback=?", rfid_scan);
 236 }
 237
 238 function set_rfid_active(active,action) {
 239         rfid_action = action;
 240         var input_active = $('input#rfid_active').attr('checked');
 241         if ( active && input_active ) {
 242                 console.info('ignored set_rfid_active ', active, action);
 243                 return;
 244         }
 245         console.info('set_rfid_active', active);
 246         if ( active ) {
 247                 $.cookie('rfid_count', rfid_count_timeout);
 248                 scan_tags();
 249                 if ( ! input_active ) $('input#rfid_active').attr('checked', true);
 250         } else {
 251                 if ( input_active ) $('input#rfid_active').attr('checked', false);
 252                 $.cookie('rfid_count', 0);
 253         }
 254 }
 255
 256 function activate_scan_tags() {
 257         var active = $('input#rfid_active').attr('checked');
 258         console.info('activate_scan_tags', active);
 259         set_rfid_active(active);
 260 }
 261
 262 $(document).ready( function() {
 263         console.log('rfid_active', $('input#rfid_active').attr('checked') );
 264
 265
 266         rfid_action = 'scan';
 267         scan_tags();    // FIXME should we trigger this on page load even if rfid is not active
 268
 269         // circulation keyboard shortcuts (FFZG specific!)
 270         shortcut.add('Alt+1', function() { set_rfid_active(true,'checkin'    )});
 271         shortcut.add('Alt+2', function() { set_rfid_active(true,'circulation')});
 272         shortcut.add('Alt+3', function() { set_rfid_active(true,'search?'    )});
 273         shortcut.add('Alt+4', function() { set_rfid_active(true,'renew'      )}); // renew
 274
 275         // send RFID tag to currently focused field on screen
 276         shortcut.add('Alt+s', function() {
 277                 var el = $('input:focus');
 278                 var tag = $('span#rfid').text().split(/\s+/)[0];
 279                 console.log('send', el[0].name, tag, el);
 280                 if ( el && tag ) el.css('background', '#ff0').val( tag )
 281                         ;//.closest('form').submit();
 282         } );
 283
 284         shortcut.add('F9', function() {
 285                 console.log('F9');
 286                 set_rfid_active(true,'F9');
 287         });
 288
 289         // intranet cataloging
 290         shortcut.add('F4', function() {
 291                 // extract barcode from window title
 292                 var barcode = document.title.split(/\(barcode\s+#|\)/)[1];
 293                 if ( barcode ) {
 294                         if ( ! rfid_blank_sid && rfid_current_sid && confirm('Reprogram this tag to barcode '+barcode) ) {
 295                                 rfid_blank_sid = rfid_current_sid;
 296                         }
 297
 298                         console.debug('program barcode', barcode, 'to', rfid_blank_sid);
 299                         $.getJSON( '///localhost:9000/program?' + rfid_blank_sid + '=' + barcode + ';callback=?', function(data) {
 300                                 console.info('programmed', rfid_blank_sid, barcode, data);
 301                         });
 302                 } else {
 303                         console.error('no barcode in window title');
 304                 }
 305         });
 306
 307 });