Open-ILS/xul/staff_client/chrome/content/util/print.js

   1 dump('entering util/print.js\n');
   2
   3 if (typeof util == 'undefined') util = {};
   4 util.print = function (context) {
   5
   6     netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
   7
   8     JSAN.use('util.error'); this.error = new util.error();
   9     JSAN.use('OpenILS.data'); this.data = new OpenILS.data(); this.data.init( { 'via':'stash' } );
  10     JSAN.use('util.window'); this.win = new util.window();
  11     JSAN.use('util.functional');
  12     JSAN.use('util.file');
  13
  14     this.context = context || 'default';
  15
  16     var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components.interfaces['nsIPrefBranch']);
  17     var key = 'oils.printer.external.cmd.' + this.context;
  18     var has_key = prefs.prefHasUserValue(key);
  19     if(!has_key && this.context != 'default') {
  20         key = 'oils.printer.external.cmd.default';
  21         has_key = prefs.prefHasUserValue(key);
  22     }
  23     this.oils_printer_external_cmd = has_key ? prefs.getCharPref(key) : '';
  24
  25     try {
  26         if (prefs.prefHasUserValue('print.always_print_silent')) {
  27             if (! prefs.getBoolPref('print.always_print_silent')) {
  28                 prefs.clearUserPref('print.always_print_silent');
  29             }
  30         }
  31     } catch(E) {
  32         dump('Error in print.js trying to clear print.always_print_silent\n');
  33     }
  34
  35     return this;
  36 };
  37
  38 util.print.prototype = {
  39
  40     'reprint_last' : function() {
  41         try {
  42             var obj = this; obj.data.init({'via':'stash'});
  43             if (!obj.data.last_print) {
  44                 alert(
  45                     document.getElementById('offlineStrings').getString('printing.nothing_to_reprint')
  46                 );
  47                 return;
  48             }
  49             var msg = obj.data.last_print.msg;
  50             var params = obj.data.last_print.params; params.no_prompt = false;
  51             obj.simple( msg, params );
  52         } catch(E) {
  53             this.error.standard_unexpected_error_alert('util.print.reprint_last',E);
  54         }
  55     },
  56
  57     'html2txt' : function(html) {
  58         JSAN.use('util.text');
  59         //dump('html2txt, before:\n' + html + '\n');
  60         var lines = html.split(/\n/);
  61         var new_lines = [];
  62         for (var i = 0; i < lines.length; i++) {
  63             var line = lines[i];
  64             if (line) {
  65                 // This undoes the util.text.preserve_string_in_html call that spine_label.js does
  66                 line = util.text.reverse_preserve_string_in_html(line);
  67                 // This looks for @hex attributes containing 2-digit hex codes, and converts them into real characters
  68                 line = line.replace(/(<.+?)hex=['"](.+?)['"](.*?>)/gi, function(str,p1,p2,p3,offset,s) {
  69                     var raw_chars = '';
  70                     var hex_chars = p2.match(/[0-9,a-f,A-F][0-9,a-f,A-F]/g);
  71                     for (var j = 0; j < hex_chars.length; j++) {
  72                         raw_chars += String.fromCharCode( parseInt(hex_chars[j],16) );
  73                     }
  74                     return p1 + p3 + raw_chars;
  75                 });
  76                 line = line.replace(/<head.*?>.*?<\/head>/gi, '');
  77                 line = line.replace(/<br.*?>/gi,'\r\n');
  78                 line = line.replace(/<table.*?>/gi,'');
  79                 line = line.replace(/<tr.*?>/gi,'');
  80                 line = line.replace(/<hr.*?>/gi,'\r\n');
  81                 line = line.replace(/<p.*?>/gi,'');
  82                 line = line.replace(/<block.*?>/gi,'');
  83                 line = line.replace(/<li.*?>/gi,' * ');
  84                 line = line.replace(/<.+?>/gi,'');
  85                 if (line) { new_lines.push(line); }
  86             } else {
  87                 new_lines.push(line);
  88             }
  89         }
  90         var new_html = new_lines.join('\n');
  91         //dump('html2txt, after:\n' + new_html + '\nhtml2txt, done.\n');
  92         return new_html;
  93     },
  94
  95     'simple' : function(msg,params) {
  96         try {
  97             if (!params) params = {};
  98             params.msg = msg;
  99
 100             var obj = this;
 101
 102             obj.data.last_print = { 'msg' : msg, 'params' : params, 'context' : this.context};
 103             obj.data.stash('last_print');
 104
 105             var silent = false;
 106             if ( params && params.no_prompt && (params.no_prompt == true || params.no_prompt == 'true') ) {
 107                 silent = true;
 108             }
 109
 110             var content_type;
 111             if (params && params.content_type) {
 112                 content_type = params.content_type;
 113             } else {
 114                 content_type = 'text/html';
 115             }
 116
 117             var w;
 118
 119             netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
 120             obj.data.init({'via':'stash'});
 121
 122             if (typeof obj.data.print_strategy == 'undefined') {
 123                 obj.data.print_strategy = {};
 124                 obj.data.stash('print_strategy');
 125             }
 126
 127             if (params.print_strategy || obj.data.print_strategy[obj.context] || obj.data.print_strategy['default']) {
 128
 129                 switch(params.print_strategy || obj.data.print_strategy[obj.context] || obj.data.print_strategy['default']) {
 130                     case 'dos.print':
 131                         params.dos_print = true;
 132                     case 'custom.print':
 133                         /* FIXME - this it a kludge.. we're going to sidestep window-based html rendering for printing */
 134                         /* I'm using regexps to mangle the html receipt templates; it'd be nice to use xsl but the */
 135                         /* templates aren't guaranteed to be valid xml.  The unadulterated msg is still preserved in */
 136                         /* params */
 137                         if (content_type=='text/html') {
 138                             w = obj.html2txt(msg);
 139                         } else {
 140                             w = msg;
 141                         }
 142                         if (! params.no_form_feed) { w = w + '\f'; }
 143                         obj.NSPrint(w, silent, params);
 144                         return;
 145                     break;
 146                 }
 147             }
 148
 149             switch(content_type) {
 150                 case 'text/html' :
 151                     var jsrc = 'data:text/javascript,' + window.escape('var params = { "data" : ' + js2JSON(params.data) + ', "list" : ' + js2JSON(params.list) + '}; function my_init() { if (typeof go_print == "function") { go_print(); } else { setTimeout( function() { if (typeof go_print == "function") { alert("Please tell the developers that the 2-second go_print workaround executed, and let them know whether this job printed successfully.  Thanks!"); go_print(); } else { alert("Please tell the developers that the 2-second go_print workaround did not work.  We will try to print one more time; there have been reports of wasted receipt paper at this point.  Please check the settings in the print dialog and/or prepare to power off your printer.  Thanks!"); window.print(); } }, 2000 ); } /* FIXME - mozilla bug#301560 - xpcom kills it too */ }');
 152                     var print_url = 'data:text/html,'
 153                         + '<html id="top"><head><script src="/xul/server/main/JSAN.js"></script><script src="' + window.escape(jsrc) + '"></script></head>'
 154                         + '<body onload="try{my_init();}catch(E){alert(E);}">' + window.escape(msg) + '</body></html>';
 155                     w = obj.win.open(print_url,'receipt_temp','chrome,resizable');
 156                     w.minimize();
 157                     w.go_print = function() {
 158                         try {
 159                             obj.NSPrint(w, silent, params);
 160                         } catch(E) {
 161                             obj.error.standard_unexpected_error_alert("Print Error in util.print.simple.  After this dialog we'll try a second print attempt. content_type = " + content_type,E);
 162                             w.print();
 163                         }
 164                         w.minimize(); w.close();
 165                     }
 166                 break;
 167                 default:
 168                     w = obj.win.open('data:' + content_type + ',' + window.escape(msg),'receipt_temp','chrome,resizable');
 169                     w.minimize();
 170                     setTimeout(
 171                         function() {
 172                             try {
 173                                 obj.NSPrint(w, silent, params);
 174                             } catch(E) {
 175                                 obj.error.standard_unexpected_error_alert("Print Error in util.print.simple.  After this dialog we'll try a second print attempt. content_type = " + content_type,E);
 176                                 w.print();
 177                             }
 178                             w.minimize(); w.close();
 179                         }, 1000
 180                     );
 181                 break;
 182             }
 183
 184         } catch(E) {
 185             this.error.standard_unexpected_error_alert('util.print.simple',E);
 186         }
 187     },
 188
 189     'tree_list' : function (params) {
 190         try {
 191             dump('print.tree_list.params.list = \n' + this.error.pretty_print(js2JSON(params.list)) + '\n');
 192             dump('print.tree_list.params.data = \n' + this.error.pretty_print(js2JSON(params.data)) + '\n');
 193         } catch(E) {
 194             dump(E+'\n');
 195         }
 196         var cols = [];
 197         var s = '';
 198         if (params.header) s += this.template_sub( params.header, cols, params );
 199         if (params.list) {
 200             for (var i = 0; i < params.list.length; i++) {
 201                 params.row = params.list[i];
 202                 params.row_idx = i;
 203                 s += this.template_sub( params.line_item, cols, params );
 204             }
 205         }
 206         if (params.footer) s += this.template_sub( params.footer, cols, params );
 207
 208         if (params.sample_frame) {
 209             var jsrc = 'data:text/javascript,' + window.escape('var params = { "data" : ' + js2JSON(params.data) + ', "list" : ' + js2JSON(params.list) + '};');
 210             params.sample_frame.setAttribute('src','data:text/html,<html id="top"><head><script src="' + window.escape(jsrc) + '"></script></head><body>' + window.escape(s) + '</body></html>');
 211         } else {
 212             this.simple(s,params);
 213         }
 214     },
 215
 216     'template_sub' : function( msg, cols, params ) {
 217         try {
 218             var obj = this;
 219             if (!msg) { dump('template sub called with empty string\n'); return; }
 220             JSAN.use('util.date');
 221             var s = msg; var b;
 222
 223             try{b = s; s = s.replace(/%LINE_NO%/g,Number(params.row_idx)+1);}
 224                 catch(E){s = b; this.error.sdump('D_WARN','string = <' + s + '> error = ' + js2JSON(E)+'\n');}
 225
 226             try{b = s; s = s.replace(/%patron_barcode%/g,params.patron_barcode);}
 227                 catch(E){s = b; this.error.sdump('D_WARN','string = <' + s + '> error = ' + js2JSON(E)+'\n');}
 228
 229             try{b = s; s = s.replace(/%LIBRARY%/g,params.lib.name());}
 230                 catch(E){s = b; this.error.sdump('D_WARN','string = <' + s + '> error = ' + js2JSON(E)+'\n');}
 231             try{b = s; s = s.replace(/%PINES_CODE%/g,params.lib.shortname());}
 232                 catch(E){s = b; this.error.sdump('D_WARN','string = <' + s + '> error = ' + js2JSON(E)+'\n');}
 233             try{b = s; s = s.replace(/%SHORTNAME%/g,params.lib.shortname());}
 234                 catch(E){s = b; this.error.sdump('D_WARN','string = <' + s + '> error = ' + js2JSON(E)+'\n');}
 235             try{b = s; s = s.replace(/%STAFF_FIRSTNAME%/g,params.staff.first_given_name());}
 236                 catch(E){s = b; this.error.sdump('D_WARN','string = <' + s + '> error = ' + js2JSON(E)+'\n');}
 237             try{b = s; s = s.replace(/%STAFF_LASTNAME%/g,params.staff.family_name());}
 238                 catch(E){s = b; this.error.sdump('D_WARN','string = <' + s + '> error = ' + js2JSON(E)+'\n');}
 239             try{b = s; s = s.replace(/%STAFF_BARCODE%/g,params.staff.barcode); }
 240                 catch(E){s = b; this.error.sdump('D_WARN','string = <' + s + '> error = ' + js2JSON(E)+'\n');}
 241             try{b = s; s = s.replace(/%STAFF_PROFILE%/g,obj.data.hash.pgt[ params.staff.profile() ].name() ); }
 242                 catch(E){s = b; this.error.sdump('D_WARN','string = <' + s + '> error = ' + js2JSON(E)+'\n');}
 243             try{b = s; s = s.replace(/%PATRON_ALIAS_OR_FIRSTNAME%/g,(params.patron.alias() == '' || params.patron.alias() == null) ? params.patron.first_given_name() : params.patron.alias());}
 244                 catch(E){s = b; this.error.sdump('D_WARN','string = <' + s + '> error = ' + js2JSON(E)+'\n');}
 245             try{b = s; s = s.replace(/%PATRON_ALIAS%/g,(params.patron.alias() == '' || params.patron.alias() == null) ? '' : params.patron.alias());}
 246                 catch(E){s = b; this.error.sdump('D_WARN','string = <' + s + '> error = ' + js2JSON(E)+'\n');}
 247             try{b = s; s = s.replace(/%PATRON_FIRSTNAME%/g,params.patron.first_given_name());}
 248                 catch(E){s = b; this.error.sdump('D_WARN','string = <' + s + '> error = ' + js2JSON(E)+'\n');}
 249             try{b = s; s = s.replace(/%PATRON_LASTNAME%/g,params.patron.family_name());}
 250                 catch(E){s = b; this.error.sdump('D_WARN','string = <' + s + '> error = ' + js2JSON(E)+'\n');}
 251             try{b = s; s = s.replace(/%PATRON_BARCODE%/g,typeof params.patron.card() == 'object' ? params.patron.card().barcode() : util.functional.find_id_object_in_list( params.patron.cards(), params.patron.card() ).barcode() ) ;}
 252                 catch(E){s = b; this.error.sdump('D_WARN','string = <' + s + '> error = ' + js2JSON(E)+'\n');}
 253
 254             try{b = s; s=s.replace(/%TODAY%/g,(new Date()));}
 255                 catch(E){s = b; this.error.sdump('D_WARN','string = <' + s + '> error = ' + js2JSON(E)+'\n');}
 256             try{b = s; s=s.replace(/%TODAY_m%/g,(util.date.formatted_date(new Date(),'%m')));}
 257                 catch(E){s = b; this.error.sdump('D_WARN','string = <' + s + '> error = ' + js2JSON(E)+'\n');}
 258             try{b = s; s=s.replace(/%TODAY_TRIM%/g,(util.date.formatted_date(new Date(),'')));}
 259                 catch(E){s = b; this.error.sdump('D_WARN','string = <' + s + '> error = ' + js2JSON(E)+'\n');}
 260             try{b = s; s=s.replace(/%TODAY_d%/g,(util.date.formatted_date(new Date(),'%d')));}
 261                 catch(E){s = b; this.error.sdump('D_WARN','string = <' + s + '> error = ' + js2JSON(E)+'\n');}
 262             try{b = s; s=s.replace(/%TODAY_Y%/g,(util.date.formatted_date(new Date(),'%Y')));}
 263                 catch(E){s = b; this.error.sdump('D_WARN','string = <' + s + '> error = ' + js2JSON(E)+'\n');}
 264             try{b = s; s=s.replace(/%TODAY_H%/g,(util.date.formatted_date(new Date(),'%H')));}
 265                 catch(E){s = b; this.error.sdump('D_WARN','string = <' + s + '> error = ' + js2JSON(E)+'\n');}
 266             try{b = s; s=s.replace(/%TODAY_I%/g,(util.date.formatted_date(new Date(),'%I')));}
 267                 catch(E){s = b; this.error.sdump('D_WARN','string = <' + s + '> error = ' + js2JSON(E)+'\n');}
 268             try{b = s; s=s.replace(/%TODAY_M%/g,(util.date.formatted_date(new Date(),'%M')));}
 269                 catch(E){s = b; this.error.sdump('D_WARN','string = <' + s + '> error = ' + js2JSON(E)+'\n');}
 270             try{b = s; s=s.replace(/%TODAY_D%/g,(util.date.formatted_date(new Date(),'%D')));}
 271                 catch(E){s = b; this.error.sdump('D_WARN','string = <' + s + '> error = ' + js2JSON(E)+'\n');}
 272             try{b = s; s=s.replace(/%TODAY_F%/g,(util.date.formatted_date(new Date(),'%F')));}
 273                 catch(E){s = b; this.error.sdump('D_WARN','string = <' + s + '> error = ' + js2JSON(E)+'\n');}
 274
 275             try {
 276                 if (typeof params.row != 'undefined') {
 277                     if (params.row.length >= 0) {
 278                         alert('debug - please tell the developers that deprecated template code tried to execute');
 279                         for (var i = 0; i < cols.length; i++) {
 280                             var re = new RegExp(cols[i],"g");
 281                             try{b = s; s=s.replace(re, params.row[i]);}
 282                                 catch(E){s = b; this.error.standard_unexpected_error_alert('print.js, template_sub(): 1 string = <' + s + '>',E);}
 283                         }
 284                     } else {
 285                         /* for dump_with_keys */
 286                         for (var i in params.row) {
 287                             var re = new RegExp('%'+i+'%',"g");
 288                             try{b = s; s=s.replace(re, params.row[i]);}
 289                                 catch(E){s = b; this.error.standard_unexpected_error_alert('print.js, template_sub(): 2 string = <' + s + '>',E);}
 290                         }
 291                     }
 292                 }
 293
 294                 if (typeof params.data != 'undefined') {
 295                     for (var i in params.data) {
 296                         var re = new RegExp('%'+i+'%',"g");
 297                         if (typeof params.data[i] == 'string' || typeof params.data[i] == 'number') {
 298                             try{b = s; s=s.replace(re, params.data[i]);}
 299                                 catch(E){s = b; this.error.standard_unexpected_error_alert('print.js, template_sub(): 3 string = <' + s + '>',E);}
 300                         } else {
 301                             /* likely a null, print as an empty string */
 302                             try{b = s; s=s.replace(re, '');}
 303                                 catch(E){s = b; this.error.standard_unexpected_error_alert('print.js, template_sub(): 3 string = <' + s + '>',E);}
 304                         }
 305                     }
 306                 }
 307             } catch(E) { dump(E+'\n'); }
 308
 309             // Date Format
 310             try {
 311                 var match;
 312                 var date_format_patt=/%DATE_FORMAT\(\s*([^,]*?)\s*,\s*([^)]*?)\s*\)%/
 313                 while(match = date_format_patt.exec(s)) {
 314                     if(match[1] == '' || match[2] == '')
 315                         s = s.replace(match[0], '');
 316                     else
 317                         s = s.replace(match[0], util.date.formatted_date(match[1], match[2]));
 318                 }
 319             } catch(E) { dump(E+'\n'); }
 320
 321             // Substrings
 322             try {
 323                 var match;
 324                 // Pre-trim inside of substrings, and only inside of them
 325                 // This keeps the trim commands from being truncated
 326                 var substr_trim_patt=/(%SUBSTR\(-?\d+,?\s*(-?\d+)?\)%.*?)(\s*%-TRIM%|%TRIM-%\s*)(.*?%SUBSTR_END%)/;
 327                 while(match = substr_trim_patt.exec(s))
 328                     s = s.replace(match[0], match[1] + match[4]);
 329                 // Then do the substrings themselves
 330                 var substr_patt=/%SUBSTR\((-?\d+),?\s*(-?\d+)?\)%(.*?)%SUBSTR_END%/;
 331                 while(match = substr_patt.exec(s)) {
 332                     var substring_start = parseInt(match[1]);
 333                     if(substring_start < 0) substring_start = match[3].length + substring_start;
 334                     var substring_length = parseInt(match[2]);
 335                     if(substring_length > 0)
 336                         s = s.replace(match[0], match[3].substring(substring_start, substring_start + substring_length));
 337                     else if(substring_length < 0)
 338                         s = s.replace(match[0], match[3].substring(substring_start + substring_length, substring_start));
 339                     else
 340                         s = s.replace(match[0], match[3].substring(substring_start));
 341                 }
 342             } catch(E) { dump(E+'\n'); }
 343
 344             // Cleanup unwanted whitespace
 345             try {
 346                 s = s.replace(/%TRIM-%\s*/g,'');
 347                 s = s.replace(/\s*%-TRIM%/g,'');
 348             } catch(E) { dump(E+'\n'); }
 349
 350             return s;
 351         } catch(E) {
 352             alert('Error in print.js, template_sub(): ' + E);
 353         }
 354     },
 355
 356
 357     'NSPrint' : function(w,silent,params) {
 358         if (!w) w = window;
 359         var obj = this;
 360         try {
 361             if (!params) params = {};
 362
 363             netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
 364             obj.data.init({'via':'stash'});
 365
 366             if (params.print_strategy || obj.data.print_strategy[obj.context] || obj.data.print_strategy['default']) {
 367
 368                 dump('params.print_strategy = ' + params.print_strategy
 369                     + ' || obj.data.print_strategy[' + obj.context + '] = ' + obj.data.print_strategy[obj.context]
 370                     + ' || obj.data.print_strategy[default] = ' + obj.data.print_strategy['default']
 371                     + ' => ' + ( params.print_strategy || obj.data.print_strategy[obj.context] || obj.data.print_strategy['default'] ) + '\n');
 372                 switch(params.print_strategy || obj.data.print_strategy[obj.context] || obj.data.print_strategy['default']) {
 373                     case 'dos.print':
 374                     case 'custom.print':
 375                         if (typeof w != 'string') {
 376                             try {
 377                                 var temp_w = params.msg || w.document.firstChild.innerHTML;
 378                                 if (!params.msg) { params.msg = temp_w; }
 379                                 if (typeof temp_w != 'string') { throw(temp_w); }
 380                                 w = obj.html2txt(temp_w);
 381                             } catch(E) {
 382                                 dump('util.print: Could not use w.document.firstChild.innerHTML with ' + w + ': ' + E + '\n');
 383                                 netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
 384                                 w.getSelection().selectAllChildren(w.document.firstChild);
 385                                 w = w.getSelection().toString();
 386                             }
 387                         }
 388                         obj._NSPrint_custom_print(w,silent,params);
 389                     break;
 390                     case 'window.print':
 391                         netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
 392                         var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components.interfaces['nsIPrefBranch']);
 393                         var originalPrinter = false;
 394                         if (prefs.prefHasUserValue('print.print_printer')) {
 395                             // This is for restoring print.print_printer after any print dialog, so that when
 396                             // window.print gets used again, it uses the configured printer for the right context
 397                             // (which should only be default--window.print is a kludge and is in limited use),
 398                             // rather than the printer last used.
 399                             originalPrinter = prefs.getCharPref('print.print_printer');
 400                         }
 401                         if (typeof w == 'object') {
 402                             w.print();
 403                             if (originalPrinter) {
 404                                 prefs.setCharPref('print.print_printer',originalPrinter);
 405                             }
 406                         } else {
 407                             if (params.content_type == 'text/plain') {
 408                                 w = window.open('data:text/plain,'+escape(params.msg));
 409                             } else {
 410                                 w = window.open('data:text/html,'+escape(params.msg));
 411                             }
 412                             setTimeout(
 413                                 function() {
 414                                     w.print();
 415                                     if (originalPrinter) {
 416                                         prefs.setCharPref('print.print_printer',originalPrinter);
 417                                     }
 418                                     setTimeout(
 419                                         function() {
 420                                             w.close();
 421                                         }, 2000
 422                                     );
 423                                 }, 0
 424                             );
 425                         }
 426                     break;
 427                     case 'webBrowserPrint':
 428                     default:
 429                         if (typeof w == 'object') {
 430                             obj._NSPrint_webBrowserPrint(w,silent,params);
 431                         } else {
 432                             if (params.content_type == 'text/plain') {
 433                                 w = window.open('data:text/plain,'+escape(params.msg));
 434                             } else {
 435                                 w = window.open('data:text/html,'+escape(params.msg));
 436                             }
 437                             setTimeout(
 438                                 function() {
 439                                     obj._NSPrint_webBrowserPrint(w,silent,params);
 440                                     setTimeout(
 441                                         function() {
 442                                             w.close();
 443                                         }, 2000
 444                                     );
 445                                 }, 0
 446                             );
 447                         }
 448                     break;
 449                 }
 450
 451             } else {
 452                 //w.print();
 453                 obj._NSPrint_webBrowserPrint(w,silent,params);
 454             }
 455
 456         } catch (e) {
 457             alert('Probably not printing: ' + e);
 458             this.error.sdump('D_ERROR','PRINT EXCEPTION: ' + js2JSON(e) + '\n');
 459         }
 460
 461     },
 462
 463     '_NSPrint_custom_print' : function(w,silent,params) {
 464         var obj = this;
 465         try {
 466
 467             var text = w;
 468             var html = params.msg || w;
 469
 470             var txt_file = new util.file('receipt.txt');
 471             txt_file.write_content('truncate',text);
 472             var text_path = '"' + txt_file._file.path + '"';
 473             txt_file.close();
 474
 475             var html_file = new util.file('receipt.html');
 476             html_file.write_content('truncate',html);
 477             var html_path = '"' + html_file._file.path + '"';
 478             html_file.close();
 479
 480             var cmd = params.dos_print ?
 481                 'copy ' + text_path + ' lpt1 /b\n'
 482                 : obj.oils_printer_external_cmd.replace('%receipt.txt%',text_path).replace('%receipt.html%',html_path)
 483             ;
 484
 485             file = new util.file('receipt.bat');
 486             file.write_content('truncate+exec',cmd);
 487             file.close();
 488             file = new util.file('receipt.bat');
 489
 490             dump('print exec: ' + cmd + '\n');
 491             var process = Components.classes["@mozilla.org/process/util;1"].createInstance(Components.interfaces.nsIProcess);
 492             process.init(file._file);
 493
 494             var args = [];
 495
 496             dump('process.run = ' + process.run(true, args, args.length) + '\n');
 497
 498             file.close();
 499
 500         } catch (e) {
 501             //alert('Probably not printing: ' + e);
 502             this.error.sdump('D_ERROR','_NSPrint_custom_print PRINT EXCEPTION: ' + js2JSON(e) + '\n');
 503         }
 504     },
 505
 506     '_NSPrint_webBrowserPrint' : function(w,silent,params) {
 507         var obj = this;
 508         try {
 509             netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
 510             var webBrowserPrint = w
 511                 .QueryInterface(Components.interfaces.nsIInterfaceRequestor)
 512                 .getInterface(Components.interfaces.nsIWebBrowserPrint);
 513             this.error.sdump('D_PRINT','webBrowserPrint = ' + webBrowserPrint);
 514             if (webBrowserPrint) {
 515                 var gPrintSettings = obj.GetPrintSettings();
 516                 if (silent) gPrintSettings.printSilent = true;
 517                 else gPrintSettings.printSilent = false;
 518                 if (params) {
 519                     if (params.marginLeft) gPrintSettings.marginLeft = params.marginLeft;
 520                 }
 521                 webBrowserPrint.print(gPrintSettings, null);
 522                 this.error.sdump('D_PRINT','Should be printing\n');
 523             } else {
 524                 this.error.sdump('D_ERROR','Should not be printing\n');
 525             }
 526         } catch (e) {
 527             //alert('Probably not printing: ' + e);
 528             // Pressing cancel is expressed as an NS_ERROR_ABORT return value,
 529             // causing an exception to be thrown which we catch here.
 530             // Unfortunately this will also consume helpful failures
 531             this.error.sdump('D_ERROR','_NSPrint_webBrowserPrint PRINT EXCEPTION: ' + js2JSON(e) + '\n');
 532         }
 533     },
 534
 535     'GetPrintSettings' : function() {
 536         try {
 537             //alert('entering GetPrintSettings');
 538             netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
 539             var pref = Components.classes["@mozilla.org/preferences-service;1"]
 540                 .getService(Components.interfaces.nsIPrefBranch);
 541             //alert('pref = ' + pref);
 542             if (pref) {
 543                 this.gPrintSettingsAreGlobal = pref.getBoolPref("print.use_global_printsettings", false);
 544                 this.gSavePrintSettings = pref.getBoolPref("print.save_print_settings", false);
 545                 //alert('gPrintSettingsAreGlobal = ' + this.gPrintSettingsAreGlobal + '  gSavePrintSettings = ' + this.gSavePrintSettings);
 546             }
 547
 548             var printService = Components.classes["@mozilla.org/gfx/printsettings-service;1"]
 549                 .getService(Components.interfaces.nsIPrintSettingsService);
 550             if (this.gPrintSettingsAreGlobal) {
 551                 this.gPrintSettings = printService.globalPrintSettings;
 552                 //alert('called setPrinterDefaultsForSelectedPrinter');
 553                 this.setPrinterDefaultsForSelectedPrinter(printService);
 554             } else {
 555                 this.gPrintSettings = printService.newPrintSettings;
 556                 //alert('used printService.newPrintSettings');
 557             }
 558         } catch (e) {
 559             this.error.sdump('D_ERROR',"GetPrintSettings() "+e+"\n");
 560             //alert("GetPrintSettings() "+e+"\n");
 561         }
 562
 563         return this.gPrintSettings;
 564     },
 565
 566     'setPrinterDefaultsForSelectedPrinter' : function (aPrintService) {
 567         try {
 568             netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
 569             if (this.gPrintSettings.printerName == "") {
 570                 this.gPrintSettings.printerName = aPrintService.defaultPrinterName;
 571                 //alert('used .defaultPrinterName');
 572             }
 573             //alert('printerName = ' + this.gPrintSettings.printerName);
 574
 575             // First get any defaults from the printer
 576             aPrintService.initPrintSettingsFromPrinter(this.gPrintSettings.printerName, this.gPrintSettings);
 577
 578             // now augment them with any values from last time
 579             aPrintService.initPrintSettingsFromPrefs(this.gPrintSettings, true, this.gPrintSettings.kInitSaveAll);
 580
 581             // now augment from our own saved settings if they exist
 582             this.load_settings();
 583
 584         } catch(E) {
 585             this.error.sdump('D_ERROR',"setPrinterDefaultsForSelectedPrinter() "+E+"\n");
 586         }
 587     },
 588
 589     'page_settings' : function() {
 590         try {
 591             netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
 592             this.GetPrintSettings();
 593             var PO = Components.classes["@mozilla.org/gfx/printsettings-service;1"].getService(Components.interfaces.nsIPrintOptions);
 594             PO.ShowPrintSetupDialog(this.gPrintSettings);
 595         } catch(E) {
 596             this.error.standard_unexpected_error_alert("page_settings()",E);
 597         }
 598     },
 599
 600     'load_settings' : function() {
 601         try {
 602             var error_msg = '';
 603             netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
 604             var file = new util.file('gPrintSettings.' + this.context);
 605             if (file._file.exists()) {
 606                 temp = file.get_object(); file.close();
 607                 for (var i in temp) {
 608                     try { this.gPrintSettings[i] = temp[i]; } catch(E) { error_msg += 'Error trying to set gPrintSettings.'+i+'='+temp[i]+' : ' + js2JSON(E) + '\n'; }
 609                 }
 610             }  else if (this.context != 'default') {
 611                 var file = new util.file('gPrintSettings.default');
 612                 if (file._file.exists()) {
 613                     temp = file.get_object(); file.close();
 614                     for (var i in temp) {
 615                         try { this.gPrintSettings[i] = temp[i]; } catch(E) { error_msg += 'Error trying to set gPrintSettings.'+i+'='+temp[i]+' : ' + js2JSON(E) + '\n'; }
 616                     }
 617                 } else {
 618                     this.gPrintSettings.marginTop = 0;
 619                     this.gPrintSettings.marginLeft = 0;
 620                     this.gPrintSettings.marginBottom = 0;
 621                     this.gPrintSettings.marginRight = 0;
 622                     this.gPrintSettings.headerStrLeft = '';
 623                     this.gPrintSettings.headerStrCenter = '';
 624                     this.gPrintSettings.headerStrRight = '';
 625                     this.gPrintSettings.footerStrLeft = '';
 626                     this.gPrintSettings.footerStrCenter = '';
 627                     this.gPrintSettings.footerStrRight = '';
 628                 }
 629             }
 630             if (error_msg) {
 631                 this.error.sdump('D_PRINT',error_msg);
 632                 this.error.yns_alert(
 633                     document.getElementById('offlineStrings').getString('load_printer_settings_error_description'),
 634                     document.getElementById('offlineStrings').getString('load_printer_settings_error_title'),
 635                     document.getElementById('offlineStrings').getString('common.ok'),
 636                     null,
 637                     null,
 638                     null
 639                 );
 640             }
 641         } catch(E) {
 642             this.error.standard_unexpected_error_alert("load_settings()",E);
 643         }
 644     },
 645
 646     'save_settings' : function() {
 647         try {
 648             var obj = this;
 649             netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
 650             var file = new util.file('gPrintSettings.' + this.context);
 651             if (typeof obj.gPrintSettings == 'undefined') obj.GetPrintSettings();
 652             if (obj.gPrintSettings) file.set_object(obj.gPrintSettings);
 653             file.close();
 654             if (this.context == 'default') {
 655                 // print.print_printer gets used by bare window.print()'s.  We sometimes use window.print for the
 656                 // WebBrowserPrint strategy to workaround bugs with the NSPrint xpcom, and only in the default context.
 657                 var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components.interfaces['nsIPrefBranch']);
 658                 prefs.setCharPref('print.print_printer',obj.gPrintSettings.printerName);
 659             }
 660         } catch(E) {
 661             this.error.standard_unexpected_error_alert("save_settings()",E);
 662         }
 663     }
 664 }
 665
 666 dump('exiting util/print.js\n');