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

  • From: javascript@xxxxxxxxxx (Jean-Francois Larocque (LMC))
  • Subject: [Javascript] Capture Ctrl-keys in Input Text or forms objects.
  • Date: Wed, 24 Jul 2002 14:37:18 -0400
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=20
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,=20
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.=20
Should I capture it specifically in the form?
What woulb be the syntax?


<SCRIPT LANGUAGE=3D"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 =3D=3D 'Netscape' && (e.which =3D=3D 3 )){
     alert("Right click is not allowed in this secure browser.");
     return false;
     }
     if (navigator.appName =3D=3D 'Netscape' && (e.which =3D=3D 2)){
     alert("Middle click is not allowed in this secure browser.");
     return false;
     }    =20
  return true;
  }
window.captureEvents(Event.KEYPRESS);
window.captureEvents(Event.MOUSEDOWN);
window.onKeyPress =3D netscapeKeyPress;
window.onmousedown=3Dright;
//--></SCRIPT>

  </HEAD>
  <BODY>
<BR><BR><BR>
      <form NAME=3Doutput>
         <p><input type=3D"text" onKeyPress=3D"netscapeKeyPress(event)"
size=3D"20">=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=3Den&lr=3D&ie=3DUTF-8&selm=3D3547027F.=
DEFB15DB%40w
ipsys.soft.net

http://groups.google.ca/groups?hl=3Den&lr=3D&ie=3DUTF-8&threadm=3D361410=
5F.B1856B9D%
40sector27.de&rnum=3D13&prev=3D/groups%3Fq%3Djavascript%2Bctrl%2Bevent%2=
Bcapture
%26start%3D10%26hl%3Den%26lr%3D%26ie%3DUTF-8%26selm%3D3614105F.B1856B9D%=
2540
sector27.de%26rnum%3D13


http://groups.google.ca/groups?q=3Djavascript+ctrl+event+capture+form&hl=
=3Den&lr
=3D&ie=3DUTF-8&scoring=3Dd&selm=3D38E90DCF.4BBC14E5%40knowspam.lucasfilm=
.com&rnum=3D9



Netscape 4.75

Jean-Fran=E7ois 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@xxxxxxxxxxxxxxx