Print only when the condition is met not working ( ie 11)

Question

If the user tries to print (using ctrl+p) without checking at least one checkbox on the page an error message gets prompted. On IE 11, I do see the error message but simultaneously the print window (popup) also appears. How can I prevent the print window?

$(window).bind('keydown', function (event) {

  if (event.ctrlKey || event.metaKey) {
    switch (String.fromCharCode(event.which).toLowerCase()) {
      case 'p':
        event.preventDefault();
        //alert('ctrl+p');
        printFunc();
        break;

      }
    }
});

Also tried :

window.onbeforeprint = function () {
    //alert('ctrl-p');
    printFunc();
    event.preventDefault();
    return false;
};

Function:

function printFunc() {
    var selectedListinsCount = selected_Listings.join('').split('').length;
    if (selectedListinsCount < 1) {
          if ($('#errmesg').length == 0) {
            $('.messageCenter').append('<span id="errmesg" class ="errmesg"> <span class="messageIcon"></span><span>Please select at least one listing</span></span>');
          }
        $('.messageCenter').show();
        return false;
    }
    else {
        $('.errmesg').remove();
        $('.messageCenter').hide();
    }

}

BTW, unless you're stuck using an old version of jQuery, use `on` instead of `bind`. — Palpatim, Jan 16 '14 at 21:07
Perhaps [intercept the event](http://stackoverflow.com/a/15662720/1576269) rather than the keypress? — Owlvark, Jan 16 '14 at 21:18
@Owlvark tried window.onbeforeprint but the problem persists. — BumbleBee, Jan 16 '14 at 21:21
I don't think this is possible: http://msdn.microsoft.com/en-us/library/ie/ms536906%28v=vs.85%29.aspx says "Cancelable: no" — Korijn, Jan 20 '14 at 20:45

score 0 · Answer 1 · answered Jan 29 '14 at 19:19

I would agree that inhibiting browsers' OS-level functionality is probably not the best approach, and becoming less possible over time- essentially if you did get this working, it'd be a bit of a hack that would lack sustainability.

Consider changing your flow to incorporate validation BEFORE presenting the data you want the user to print.

score 0 · Answer 2 · edited Jan 30 '14 at 07:22

0

You should use return; instead of return false;.

edited Jan 30 '14 at 07:22

Wladimir Palant

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answered Jan 30 '14 at 07:05

Abhijit Pandya

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Print only when the condition is met not working ( ie 11)

2 Answers2