windowless print for dos.print strategy

git-svn-id: svn://svn.open-ils.org/ILS/branches/rel_1_0@6978 dcc99617-32d9-48b4-a31d-7c20da2025e4

diff --git a/Open-ILS/xul/staff_client/chrome/content/util/print.js b/Open-ILS/xul/staff_client/chrome/content/util/print.js
index 184b01e..8de8d57 100644 (file)
--- a/Open-ILS/xul/staff_client/chrome/content/util/print.js
+++ b/Open-ILS/xul/staff_client/chrome/content/util/print.js
@@ -52,6 +52,29 @@ util.print.prototype = {
                        }
 
                        var w;
+
+                       netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
+                       obj.data.init({'via':'stash'});
+
+                       if (params.print_strategy || obj.data.print_strategy) {
+
+                               switch(params.print_strategy || obj.data.print_strategy) {
+                                       case 'dos.print':
+                                               /* FIXME - this it a kludge.. we're going to sidestep window-based html rendering for printing */
+                                               /* I'm using regexps to mangle the html receipt templates; it'd be nice to use xsl but the */
+                                               /* templates aren't guaranteed to be valid xml */
+                                               if (content_type=='text/html') {
+                                                       w = msg.replace(/<br.*?>/gi,'\r\n').replace(/<table.*?>/gi,'\r\n').replace(/<tr.*?>/gi,'\r\n').replace(/<hr.*?>/gi,'\r\n').replace(/<p.*?>/gi,'\r\n').replace(/<block.*?>/gi,'\r\n').replace(/<li.*?>/gi,'\r\n * ').replace(/<.+?>/gi,'');
+                                               } else {
+                                                       w = msg;
+                                               }
+                                               if (! params.no_form_feed) { w = w + '\r\n\f'; }
+                                               obj.NSPrint(w, silent, params);
+                                               return;
+                                       break;
+                               }
+                       }
+
                        switch(content_type) {
                                case 'text/html' :
                                        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 */ }');
@@ -238,13 +261,19 @@ util.print.prototype = {
                var obj = this;
                try {
 
-                       /* This is a kludge/workaround.  webBrowserPrint doesn't always work.  So we're going to let
+                       /* OLD way: This is a kludge/workaround.  webBrowserPrint doesn't always work.  So we're going to let
                                the html window handle our receipt template rendering, and then force a selection of all
                                the text nodes and dump that to a file, for printing through a dos utility */
 
+                       /*
                        netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
                        w.getSelection().selectAllChildren(w.document.firstChild);
                        var text = w.getSelection().toString();
+                       */
+
+                       /* NEW way: we just pass in the text */
+
+                       var text = w;
 
                        var file = new util.file('receipt.txt');
                        file.write_content('truncate',text); file.close();