koha-dev.rot13.org Git - koha_ffzg/blob - 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 var rainbow_colors = [ '#9400D3', '#4B0082', '#0000FF', '#00FF00', '#FFFF00', '#FF7F00', '#FF0000' ];
  15
  16 function barcode_on_screen(barcode) {
  17         // FIXME: don't work without checkbox, probably broken
  18         var found = 0;
  19         $('table tr td a:contains(130)').each( function(i,o) {
  20                 var possible = $(o).text();
  21                 if ( possible == barcode ) found++;
  22         })
  23         var lastchecked = $('div.lastchecked').text();
  24         if ( lastchecked ) {
  25                 console.info('found lastchecked div', lastchecked);
  26                 var checked_out_barcode = lastchecked.split(/\(/)[1].split(/\)/)[0];
  27                 if ( checked_out_barcode == barcode ) found++;
  28         }
  29         // Not checked out message in returns.pl
  30         var alert_dialog = $('div.alert p a:contains(130)').text();
  31         if ( alert_dialog ) {
  32                 console.info('found alert dialog', alert_dialog);
  33                 var alert_barcode = alert_dialog.split(/:/)[0];
  34                 if ( alert_barcode == barcode ) found++;
  35         }
  36         console.debug('barcode_on_screen', barcode, found);
  37         return found;
  38 }
  39
  40 var rfid_refresh = 200; // ms
  41 var rfid_count_timeout = 50; // number of times to scan reader before turning off
  42
  43
  44 function rfid_secure_json(t,val, success) {
  45         if ( t.security.toUpperCase() == val.toUpperCase() ) return success({ verified: val });
  46         rfid_refresh = 0; // disable rfid pull until secure call returns
  47         console.log('rfid_secure_json', t, val);
  48         $.getJSON( '///localhost:9000/secure.js?' + t.sid + '=' + val + ';callback=?', success );
  49 }
  50
  51
  52
  53 var rfid_reset_field = false;
  54 var rfid_current_sid = false;
  55 var rfid_blank_sid   = false;
  56 var rfid_action = undefined;
  57 var rfid_scan_busy = false;
  58
  59 function rfid_scan(data,textStatus) {
  60
  61         rfid_scan_busy = false;
  62
  63         var rfid_count = $.cookie('rfid_count');
  64         if ( rfid_count === undefined ) {
  65                 rfid_count = rfid_count_timeout;
  66         }
  67
  68         console.debug( 'rfid_scan', data, 'status', textStatus, 'rfid_count', rfid_count);
  69         rfid_current_sid = false;
  70         rfid_blank_sid = false;
  71
  72         var span = $('span#rfid');
  73
  74         if ( span.size() == 0 ) {
  75                 // insert last in language bar on bottom
  76 //              span = $('ul#i18nMenu').append('<li><span id=rfid>RFID reader found<span>');
  77
  78                 // alternative pop-up version
  79                 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>');
  80                 if ( rfid_count ) $('input#rfid_active').attr('checked',true);
  81                 $('input#rfid_active').click(activate_scan_tags); // FIXME don't activate actions on page load
  82         }
  83
  84
  85         if ( span.size() == 0 ) // or before login on top
  86                 span = $('div#login').prepend('<span id=rfid>RFID reader found</span>');
  87
  88         span = $('span#rfid');
  89         var info = $('span#rfid-info');
  90
  91
  92         if ( data.tags ) {
  93                 if ( data.tags.length === 1 ) {
  94                         var t = data.tags[0];
  95                         rfid_current_sid = t.sid;
  96                         var rfid_last_tag = $.cookie('rfid_last_tag');
  97
  98 //                      if ( span.text() != t.content ) {
  99                         if ( 1 ) { // force update of security
 100
 101                                 var script_name = document.location.pathname.split(/\//).pop();
 102                                 var referrer_name = document.referrer.split(/\//).pop();
 103                                 var tab_active  = $("#header_search li[aria-selected=true]").attr('aria-controls');
 104                                 var focused_form = $('input:focus').first().name;
 105                                 var action =
 106                                         rfid_action                                                          ? rfid_action :
 107                                         ( script_name == 'returns.pl'     || tab_active == 'checkin_search') ? 'checkin' : // must be before circulation
 108                                         ( script_name == 'circulation.pl' || tab_active == 'circ_search' )   ? 'circulation' :
 109                     'scan';
 110                                 rfid_action = undefined; // one-shot
 111                                 console.debug('script_name', script_name, 'referrer_name', referrer_name, 'tab_active', tab_active, 'action', action, 'focused_form', focused_form, 'rfid_last_tag' , rfid_last_tag );
 112                                 info.text(action);
 113
 114                                 // keep refreshing rfid reader
 115                                 if ( referrer_name == 'circulation.pl' ) {
 116                                         rfid_count = rfid_count_timeout;
 117                                 }
 118
 119
 120                                 if ( t.content.length == 0 || t.content == 'UUUUUUUUUUUUUUUU' ) { // blank tag (3M is UUU....)
 121
 122                                         rfid_blank_sid = t.sid;
 123                                         span.text( t.sid + ' blank' ).css('color', 'red' );
 124
 125                                 } else if ( t.content.substr(0,3) == '130' && t.reader == '3M810' ) { // books on 3M reader
 126
 127                                         var color = 'blue';
 128                                         var icon  = '?';
 129                                         if ( t.security.toUpperCase() == 'DA' ) { color = 'red'; icon = '&timesb;' }
 130                                         if ( t.security.toUpperCase() == 'D7' ) { color = 'green'; icon = '&rarr;' }
 131                                         span.html( t.content + '&nbsp;' + icon ).css('color', color);
 132
 133
 134                                         if ( tab_active == 'catalog_search'
 135                                                 && script_name != 'moredetail.pl'
 136                                                 && script_name != 'detail.pl'
 137                                                 && $('input#rfid_active').attr('checked') ) {
 138
 139                                                 if ( $('span.term:contains(bc:'+t.content+')').length == 0 ) {
 140                                                         $.cookie('rfid_count', rfid_count_timeout);
 141                                                         rfid_refresh = 0;
 142                                                         $('input[name=q]')
 143                                                                 .css('background', '#ff0')
 144                                                                 .val( 'bc:' + t.content )
 145                                                                 .closest('form').submit();
 146                                                 }
 147                                         }
 148
 149                                         if (
 150                                                 ( action == 'returns' || action == 'checkin' || action == 'circulation' )
 151                                                 && ! barcode_on_screen( t.content )
 152                                                 //&& t.content != rfid_last_tag
 153                                         ) {
 154                                                 rfid_reset_field = 'barcode';
 155
 156                                                 // return must be first to catch change of tab to check-in
 157                                                 var afi_secure =
 158                                                         action == 'checkin' ? 'DA' :
 159                                                         action == 'circulation' ? 'D7' :
 160                                                         t.security;
 161
 162                                                 var form_selector =
 163                                                         script_name == 'returns.pl' ? 'last' : 'first';
 164
 165                                                 var i = $('input[name=barcode]:focus');
 166                                                 if ( i.length == 1 ) {
 167                                                         i.css('background', '#ff0');
 168                                                         console.log('input barcode focus', i, i.val());
 169                                                 } else {
 170                                                         i = $('input[name=barcode]:'+form_selector).first();
 171                                                         i.css('background', '#ff0');
 172                                                         console.log('input barcode', form_selector, i, i.val());
 173                                                 }
 174
 175                                                 if ( action == 'circulation' && $('#circ_needsconfirmation').length > 0 ) {
 176                                                         console.log("in circulation, but needs confirmation");
 177                                                 } else if (i) {
 178
 179                                                         console.debug('val', i.val(), 'name', i.name, 'i', i);
 180
 181                                                         if ( i.val() != t.content ) { // && i.name == 'barcode' )  {
 182                                                                 i.css('background', '#0ff' );
 183                                                                 rfid_refresh = 0;
 184                                                                 rfid_secure_json( t, afi_secure, function(data) {
 185                                                                         console.log('secure', afi_secure, data);
 186                                                                         $.cookie('rfid_count', 0); // FIXME once? to see change rfid_count_timeout);
 187                                                                         i.css('background',
 188                                                                                         afi_secure == 'DA' ? '#f00' :
 189                                                                                         afi_secure == 'D7' ? '#0f0' :
 190                                                                                                                                 '#0ff'
 191                                                                                 )
 192                                                                                 .val( t.content )
 193                                                                                 .closest('form').submit();
 194                                                                 });
 195                                                         } else {
 196                                                                 console.error('not using element', i);
 197                                                         }
 198                                                 } else {
 199                                                         console.error('element not found', i);
 200                                                 }
 201
 202                                         } else {
 203                                                 console.debug(action, 'no form submit');
 204                                         }
 205
 206                                 } else if ( t.content.substr(0,3) == '130' ) {
 207
 208                                         span.text( 'Please put book on 3M reader!' ).css( 'color', 'red' );
 209
 210                                 } else {
 211                                         span.html( t.content + '&nbsp;&sstarf;' ).css('color', 'blue' );
 212
 213                                         if ( $('.patroninfo:contains('+t.content+')').length == 1 ) {
 214                                                 console.debug('not submitting', t.contains);
 215                                         } else {
 216                                                 rfid_refresh = 0; // stop rfid scan while submitting form
 217                                                 rfid_reset_field = 'findborrower';
 218                                                 $('input[name=findborrower]')
 219                                                         .css('background', '#00f')
 220                                                         .val( t.content )
 221                                                         .parent().submit();
 222                                         }
 223                                 }
 224                         }
 225                 } else {
 226                         var error = data.tags.length + ' tags near reader: ';
 227                         $.each( data.tags, function(i,tag) { error += tag.content + ' '; } );
 228                         span.text( error ).css( 'color', 'red' );
 229                 }
 230
 231         } else {
 232                 span.text( 'no tags in range' ).css('color','gray');
 233                 if ( rfid_reset_field ) {
 234                         $('input[name='+rfid_reset_field+']').val( '' );
 235                         rfid_reset_field = false;
 236                 }
 237         }
 238
 239         if (rfid_count > 0) rfid_count--;
 240         if (rfid_count == 0) {
 241                 //span.text('RFID reader disabled').css('color','black');
 242                 $('input#rfid_active').attr('checked', false)
 243                 console.log('RFID disabled', rfid_count);
 244         }
 245         $.cookie('rfid_count', rfid_count);
 246
 247         if (rfid_refresh > 1 && $('input#rfid_active').attr('checked') ) {
 248                 window.setTimeout( function() {
 249                         if ( rfid_refresh ) {
 250                                 var color = rainbow_colors[ rfid_count % rainbow_colors.length ];
 251                                 console.debug('color', color);
 252                                 $('#rfid_popup').css('border','3px solid '+color);
 253                                 scan_tags();
 254                         } else {
 255                                 console.error('got setTimeout but rfid_refresh', rfid_refresh, ' is not set');
 256                         }
 257                 }, rfid_refresh );
 258         } else {
 259                 console.debug('rfid_refresh disabled',rfid_refresh);
 260                 $('#rfid_popup').css('border','3px solid #fff');
 261         }
 262
 263         $.cookie('rfid_last_tag', t ? t.content : '--none--');
 264
 265 }
 266
 267 function scan_tags() {
 268         if ( rfid_scan_busy ) {
 269                 console.error('rfid_scan_busy');
 270                 return;
 271         }
 272         rfid_scan_busy = true;
 273         console.info('scan_tags');
 274         $.getJSON("///localhost:9000/scan?callback=?", rfid_scan);
 275 }
 276
 277 function set_rfid_active(active,action) {
 278         rfid_action = action;
 279         var input_active = $('input#rfid_active').attr('checked');
 280         if ( active && input_active ) {
 281                 $.cookie('rfid_count', rfid_count_timeout);
 282                 console.info('ignored set_rfid_active ', active, action);
 283                 scan_tags();
 284                 return;
 285         }
 286         console.info('set_rfid_active', active);
 287         if ( active ) {
 288                 $.cookie('rfid_count', rfid_count_timeout);
 289                 scan_tags();
 290                 if ( ! input_active ) $('input#rfid_active').attr('checked', true);
 291         } else {
 292                 if ( input_active ) $('input#rfid_active').attr('checked', false);
 293                 $.cookie('rfid_count', 0);
 294         }
 295 }
 296
 297 function activate_scan_tags() {
 298         var active = $('input#rfid_active').attr('checked');
 299         console.info('activate_scan_tags', active);
 300         set_rfid_active(active);
 301 }
 302
 303 $(document).ready( function() {
 304         console.log('rfid_active', $('input#rfid_active').attr('checked') );
 305
 306
 307         rfid_action = 'scan';
 308         scan_tags();    // FIXME should we trigger this on page load even if rfid is not active
 309
 310         // circulation keyboard shortcuts (FFZG specific!)
 311         shortcut.add('Alt+r', function() { set_rfid_active(true,'checkin'    )});
 312         shortcut.add('Alt+z', function() { set_rfid_active(true,'circulation')});
 313         shortcut.add('Alt+y', function() { set_rfid_active(true,'circulation')});
 314 /*
 315         shortcut.add('Alt+3', function() { set_rfid_active(true,'search?'    )});
 316         shortcut.add('Alt+4', function() { set_rfid_active(true,'renew'      )}); // renew
 317 */
 318
 319         // send RFID tag to currently focused field on screen
 320         shortcut.add('Alt+s', function() {
 321                 var el = $('input:focus');
 322                 var tag = $('span#rfid').text().split(/\s+/)[0];
 323                 console.log('send', el[0].name, tag, el);
 324                 if ( el && tag ) el.css('background', '#ff0').val( tag )
 325                         ;//.closest('form').submit();
 326         } );
 327
 328         shortcut.add('F9', function() {
 329                 console.log('F9');
 330                 //set_rfid_active(true,'F9');
 331                 scan_tags();
 332         });
 333
 334         // intranet cataloging
 335         shortcut.add('F4', function() {
 336                 // extract barcode from window title
 337                 var barcode = document.title.split(/\(barcode\s+#|\)/)[1];
 338                 if ( barcode ) {
 339                         if ( ! rfid_blank_sid && rfid_current_sid && confirm('Reprogram this tag to barcode '+barcode) ) {
 340                                 rfid_blank_sid = rfid_current_sid;
 341                         }
 342
 343                         console.debug('program barcode', barcode, 'to', rfid_blank_sid);
 344                         $.getJSON( '///localhost:9000/program?' + rfid_blank_sid + '=' + barcode + ';callback=?', function(data) {
 345                                 console.info('programmed', rfid_blank_sid, barcode, data);
 346                         });
 347                 } else {
 348                         console.error('no barcode in window title');
 349                 }
 350         });
 351
 352 });