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

21 Feb 2012

      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@gmail.com
        ReportedBy: veron@veron.ch
         QAContact: koha.sekjal@gmail.com
                CC: gmcharlt@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...
-----------------------------------------------
...
From now on, slips will print silently with Firefox and will show default
behaviour
if jsPrintSetup is not installed or if you make use of an other browser. 
All other printing will behave like before.
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[Bug 7563] New: Silent print slips using Firefox PlugIn jsPrintSetup and new staff client preference

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