Thanx a million Robert!
That worked just perfect!
And dont u worry!
This is for a security project well within the company's intranet only!
And i can ensure that everyone uses Netscape 6 and above...
So no probs at all!
And i fixed the F11 key in IE too!
this is the code i used for that:
if (bIE && event.keyCode == 122)
{
event.keyCode = 0;
alert("Disabled!");
return false;
}
(event.returnvalue=false was not working!So i set the keycode to 0 and
just returned false ;) )
Thanx once again! Now i can count on u.... :-)
-----Original Message-----
From: Robert Nyman [mailto:robert.nyman@c...]
Sent: Tuesday, December 10, 2002 6:33 PM
To: 'javascript'
Cc: Randolph, Priya
Subject: SV: [javascript] SV: disabling control keys in Netscape
Priya,
After some research, I've found a solution for you! :-)
This code below will support Netscape 6+ (sorry, no Netscape 4 support).
One thing that I don't seem to be able to prevent, though, is the F11
key in IE, otherwise it just works like a charm.
However, I hope that this code will only be used for a closed
environment, since it's not good
programming fashion preventing default key shortcuts in the user's
browser.
Code:
<html>
<head>
<title>Test...</title>
<script language="JavaScript" type="text/javascript">
var bNS6andUp = (navigator.appName == "Netscape" &&
parseInt(navigator.appVersion, 10) >= 5)? true : false;
var bIE = (navigator.appVersion.search(/MSIE/) != -1)? true :
false;
if(bNS6andUp){
window.addEventListener("keypress", keyPressCheck,
true);
}
else if(bIE){
document.onkeydown = keyPressCheck;
}
/*
KEY CODES/CHAR CODES:
A: 65 = 97 in Netscape
B: 66 = 98 in Netscape
E: 69 = 101 in Netscape
H: 72 = 104 in Netscape
I: 73 = 105 in Netscape
N: 78 = 110 in Netscape
W: 87 = 119 in Netscape
8 (NumPad): 104 = 56 in Netscape
*/
function keyPressCheck(e){
var oEvent = (bIE)? event : e;
var intKeyCode = oEvent.keyCode;
var intCharCode = (bIE)? oEvent.keyCode :
oEvent.charCode;
var bCtrlKey = (oEvent.ctrlKey)? true : false;
if(bNS6andUp && intKeyCode == 122){
oEvent.preventDefault();
}
var oRegExp = (bIE)? new
RegExp(/65|66|69|72|73|78|87|104/) : new
RegExp(/56|97|98|101|104|105|110|119/);
if(bCtrlKey && oRegExp.test(intCharCode)){
(bIE)? oEvent.returnValue = false :
oEvent.preventDefault();
}
}
</script>
</head>
<body>
</body>
</html>
/Robert
-----Ursprungligt meddelande-----
Från: Robert Nyman [mailto:robert.nyman@c...]
Skickat: den 6 december 2002 17:48
Till: javascript
Ämne: [javascript] SV: disabling control keys in Netscape
Priya,
I took the the liberty of rewriting your code (see below).
BUT, unfortunately I'm experiencing the same problem as you: I can't
prevent the default action in any Netscape browser!!! For instance, this
code blocks Ctrl + N (out of many keyboard shortcuts), and it works in
IE , but it doesn't work in Netscape.
I know that this isn't good programming fashion for the Internet,
preventing default browser action, but for a closed environment it might
be ok.
Am I missing something here, or can't it be done?
Code:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Test...</title>
<script language="javascript">
var bIE = (navigator.appVersion.indexOf("MSIE") != -1)? true :
false;
var bNS4 = (navigator.appName == "Netscape" &&
parseInt(navigator.appVersion, 10) == 4)? true : false;
var bNS6andUp = (navigator.appName == "Netscape" &&
parseInt(navigator.appVersion, 10) >= 5)? true : false;
if(bNS4) document.captureEvents(Event.KEYDOWN);
document.onkeydown = keydowncheck;
/*
KEY CODES:
A: 65 = 97 in Netscape 4
B: 66 = 98 in Netscape 4
E: 69 = 101 in Netscape 4
H: 72 = 104 in Netscape 4
I: 73 = 105 in Netscape 4
N: 78 = 110 in Netscape 4
W: 87 = 119 in Netscape 4
8 (NumPad): 104 = 56 in Netscape 4
*/
function keydowncheck(e){
var oEvent = (bIE)? event : e;
var intKeyCode = (bIE)? oEvent.keyCode : oEvent.which;
var bCtrlKey = (bNS4)? (oEvent.modifiers &&
Event.CONTROL_MASK)? true : false : (oEvent.ctrlKey)? true : false;
//alert(bCtrlKey);
//alert(intKeyCode);
if((bIE || bNS6andUp) && intKeyCode == 122){
alert("Disabled");
if(bIE){
event.returnValue = false;
event.cancelBubble = true;
}
else if(bNS6andUp){
e.preventDefault();
e.stopPropagation();
}
return false;
}
var oRegExp = (bNS4)? new
RegExp(/97|98|101|104|105|110|56/) : new
RegExp(/65|66|69|72|73|78|87|104/);
if(bCtrlKey && oRegExp.test(intKeyCode)){
alert("Disabled");
if(bIE){
event.returnValue = false;
event.cancelBubble = true;
}
else if(bNS6andUp){
e.cancelBubble = true;
e.preventDefault();
e.stopPropagation();
}
return false;
}
}
</script>
</head>
<body>
</body>
</html>
/Robert
-----Ursprungligt meddelande-----
Från: Randolph, Priya [mailto:priya.randolph@d...]
Skickat: den 6 december 2002 13:00
Till: javascript
Ämne: [javascript] disabling control keys in Netscape
Hi,
This is Priya.
I need to disable the conrol keys like ^N, ^A, ^I etc in Netscape It
works in IE but not in netscape
I am able to trap the control key sequence but not DISABLE it :(
here is the script i use:
<script language="javascript">
var IE=0, NS=0;
// Detect the browser
IE = (-1 != navigator.appVersion.indexOf("MSIE")) ? 1 : 0;
NS = ("Netscape" == navigator.appName) ? 1 : 0;
var blnDOM = false, blnIE4 = false, blnNN4 = false;
if (document.getElementById) blnDOM = true;
else if (document.layers) blnNN4 = true;
else if (document.all) blnIE4 = true;
if (blnNN4 || NS) document.captureEvents(Event.KEYDOWN)
document.onkeydown =keydowncheck
function keydowncheck(e)
{
if (NS)
{
var NN4key = e.which;
if (e.which == 122)
{
e.which = 0;
alert("disabled NS!");
return false;
}
else
if((NN4key == 78) || (NN4key == 104) || (NN4key == 65) || (NN4key ==
87)
|| (NN4key == 69) || (NN4key == 72) || (NN4key == 66) || (NN4key == 73))
{
//e.which=0;
alert("Disabled Control!");
//e.returnValue = false;
e.preventDefault()
//document.onkeydown=new Function("return false")
return false;
}
}
if (blnDOM || blnIE4)
{
if (122 == event.keyCode)
{
event.keyCode = 0;
alert("disabled!");
return false;
}
else if(event.ctrlKey)
{
if((event.keyCode == 78) || (event.keyCode == 104) ||
(event.keyCode ==
65) || (event.keyCode == 87) || (event.keyCode == 69) || (event.keyCode
==
72) || (event.keyCode == 66) || (event.keyCode == 73))
{
alert("Disabled!");
event.returnValue = false;
}
}
}
}
</script>
( i have attached the file)
Pls help me with the solution.
Regards,
Priya Randolph
Digital GlobalSoft Ltd.
(A subsidiary of Hewlett-Packard Co., USA)
'Digital Park' , Plot No. 39/40,Konappana Agrahara,
Electronic city, Phase 2,Hosur Road,Bangalore
India
TEL : 91-80-8528395/6/7/8 Extn 62112
Email: <mailto:priya.randolph@d...> priya.randolph@d...
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