[Koha-bugs] [Bug 7563] New: Silent print slips using Firefox PlugIn jsPrintSetup and new staff client preference

[bugzilla-daemon at bugs.koha-community.org]

http://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=7563

             Bug #: 7563
           Summary: Silent print slips using Firefox PlugIn jsPrintSetup
                    and new staff client preference
    Classification: Unclassified
 Change sponsored?: ---
           Product: Koha
           Version: master
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P5 - low
         Component: Circulation
        AssignedTo: kyle.m.hall at gmail.com
        ReportedBy: veron at veron.ch
         QAContact: koha.sekjal at gmail.com
                CC: gmcharlt at gmail.com


This is a proposition to implement silent printing for slips. 

In opposition to the solution with an additional Firefox (Portable)
installation (see:
http://wiki.koha-community.org/wiki/Using_Portable_Firefox_as_a_Koha_Client),
this solution works with the standard Firefox installation (+ PlugIn
jsPrintSetup) .

jsPrintSetup e.g. allows to set printer, print silent, change header and
footer, see: http://jsprintsetup.mozdev.org/

The overall concept is to have a new staff client preference where one can
enter the necessary JavaScript. 

If this preference is empty, Koha falls back to te default behaviour.

I did a proof of concept with the following steps: 

--Step 1 --------------------------
Add somewhere to staff_client.pref, 
e.g. near intranetstylesheet:
----------------------------------
-
    - "Use the following JavaScript for printing slips. Define at least
function printThenClose(). For use e.g. with Firefox PlugIn jsPrintSetup, see
http://jsprintsetup.mozdev.org/:"
    - pref: intranetslipprinterjs
      type: textarea
      class: code        
----------------------------------
(Suppose this will be pootleized to have translations?)


--Step 2---------------------------
Add somewhere to moremember.pl:
----------------------------------
    $template->param( intranetslipprinterjs =>
C4::Context->preference('intranetslipprinterjs' ) );
----------------------------------

--Step 3----------------------------------------------
Replace hard coded JavaScript function printThenClose() 
in moremember-print.tt and moremember-receipt.tt with:
------------------------------------------------------
<script language="javascript">
[% IF ( intranetslipprinterjs ) %]
    [% intranetslipprinterjs %]
[% ELSE %] 
    function printThenClose() {
        window.print();
        window.close();
    }
[% END %] 
</script>    

--Step 4----------------------------------------------------------------------
Login to Koha, go to Home › Administration › System Preferences (Staff Client) 
and edit the new field intranetslipprinterjs to print silent, set printer etc.
------------------------------------------------------------------------------
function printThenClose() {
 try
  {
        //Try to print using jsPrintSetup Plug-In in Firefox
        //If it is not installed fall back to default prnting
        jsPrintSetup.clearSilentPrint();   
        jsPrintSetup.setOption('printSilent', 1);

    //Choose printer using one or more of the following functions
    //jsPrintSetup.getPrintersList...
    //jsPrintSetup.setPrinter...

    //Set Header and footer...
        jsPrintSetup.setOption('headerStrLeft', '');
        jsPrintSetup.setOption('headerStrCenter', '');
        jsPrintSetup.setOption('headerStrRight', '');
        jsPrintSetup.setOption('footerStrLeft', '');
        jsPrintSetup.setOption('footerStrCenter', '');
        jsPrintSetup.setOption('footerStrRight', '');   

        jsPrintSetup.print();     
        window.close();
  }
catch(err)
  {   
        //Default printing if jsPrint-setup is not available
        window.print();
        window.close();
  }
} 

--Step 5---------------------------------------------
...and install jsPrintSetup PlugIn in Firefox...
-----------------------------------------------