[Javascript] Capture Ctrl-keys in Input Text or forms objects.

Wed Jul 24 13:37:18 CDT 2002

Hi, I am developping a Secure web browser for an intranet.

basically we want to control the pages accessed.

I have control on the client side of Netscape 4.75 
so we launch it in kioskmode (No menu, buttons, status or location bar)

I want to keep my users to use CTRL-O or CTRL-N because when the new window
appears, 
the kioskmode is not preserved.

I wrote the following script to capture events related to rightt click and
CTRL-keys functions
but I enconter the following problem:
When the focus is in a form, the onKeyPress does not catch the CTRL key
combinaison attached to Netscape functions.

So a user could manage to open a new windows by pressing CTRL-New when the
focus is in a form.
In the form, it seems that the only event captured is onkeyup.

I capture the events at the highest level, ie in the windows object. 
Should I capture it specifically in the form?
What woulb be the syntax?

<SCRIPT LANGUAGE="JavaScript1.2"><!--
  function netscapeKeyPress(e) {
  if (e.modifiers )//& Event.CONTROL_MASK )
  alert('Ctrl keys is not allowed in this secure browser');
  }
  function right(e) {
     if (navigator.appName == 'Netscape' && (e.which == 3 )){
     alert("Right click is not allowed in this secure browser.");
     return false;
     }
     if (navigator.appName == 'Netscape' && (e.which == 2)){
     alert("Middle click is not allowed in this secure browser.");
     return false;
     }     
  return true;
  }
window.captureEvents(Event.KEYPRESS);
window.captureEvents(Event.MOUSEDOWN);
window.onKeyPress = netscapeKeyPress;
window.onmousedown=right;
//--></SCRIPT>

  </HEAD>
  <BODY>
<BR><BR><BR>
      <form NAME=output>
         <p><input type="text" onKeyPress="netscapeKeyPress(event)"
size="20"> 
      </form>
  </BODY>

I searched the usegroup and it seems that the problem was encontered before
but
I could not extract an applicable solution to my problem.

Here are the links to the previous threads related to my problem:

http://groups.google.ca/groups?hl=en&lr=&ie=UTF-8&selm=3547027F.DEFB15DB%40w
ipsys.soft.net

http://groups.google.ca/groups?hl=en&lr=&ie=UTF-8&threadm=3614105F.B1856B9D%
40sector27.de&rnum=13&prev=/groups%3Fq%3Djavascript%2Bctrl%2Bevent%2Bcapture
%26start%3D10%26hl%3Den%26lr%3D%26ie%3DUTF-8%26selm%3D3614105F.B1856B9D%2540
sector27.de%26rnum%3D13

http://groups.google.ca/groups?q=javascript+ctrl+event+capture+form&hl=en&lr
=&ie=UTF-8&scoring=d&selm=38E90DCF.4BBC14E5%40knowspam.lucasfilm.com&rnum=9

Netscape 4.75

Jean-François Larocque
LMC/XB/A    CDMA OSS Integration
Ericsson Research Canada
8300 Boulevard Decarie
Ville Mont-Royal (Quebec)
Canada  H4P 2P5
Tel:   514-345-7900 x2208
mailto:lmcjfla at lmc.ericsson.se