code in CH11 not work in FireFox

din · #1 (**permalink**) January 16th, 2006, 09:49 PM

code: BlockPasteExample.htm;
BlockPasteExample1.htm;
BlockPasteExample2.htm
in IE, it work well, but in my FireFox(1.5), i cannot use the backspace.
it just block the backspace key.
is it a bug in FireFox? or in the code?

din · #2 (**permalink**) January 16th, 2006, 10:29 PM

i change the code

Code:

 if (bBlockPaste) {
        return bIsValidChar && !(oEvent.ctrlKey && sChar == "v");
    } else {
        return bIsValidChar || oEvent.ctrlKey;
    }

to

Code:

   if (bBlockPaste) {
        return (bIsValidChar|| oEvent.shiftKey|| oEvent.keyCode==8) && !(oEvent.ctrlKey && sChar == "v");
    } else {
        return bIsValidChar || oEvent.ctrlKey || oEvent.shiftKey || oEvent.keyCode==8;
    }

then the FireFox works.

nzakas · #3 (**permalink**) January 18th, 2006, 08:21 PM

It looks like Firefox 1.5 changed the way the keypress event works. In previous versions, it only fired when character keys were pressed (as in IE), but in 1.5 it looks like it also fires for non-character keys, which is why backspace isn't working. I'm going to have to investigate and see what the best solution is.

Nicholas C. Zakas
Author, Professional JavaScript for Web Developers (ISBN 0764579088)
http://www.nczonline.net/

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