Re: [Dynapi-Dev] Keyboard events in HTMLTextBox

[Stephen C. <sca...@vi...>]

I while back I also wrote a library that corrects for keyboard events by
returning a remapped ascii set. If you notice, keyboard events on IE and
Netcape return different keycodes. I've made one mod to remap them and get
the case right. May I suggest that be corrected as well. Also, there was an
example I sent out that showed how to retrieve tab, shift+alt+del, enter,
and even arrow keys regardless of platform or browser but it was in DynAPI
2.5. I haven't had the time to port it to 3.0 but I believe the code should
be implemented, as keyboard support is rather poor to date.

----- Original Message ----- 
From: "Raymond Irving" <xw...@ya...>
To: <dyn...@li...>
Sent: Friday, August 22, 2003 9:11 AM
Subject: Re: [Dynapi-Dev] Keyboard events in HTMLTextBox


>
> Point well taken. I'll see to it that your changes be
> implemented inside the HTML form based components.
>
> --
> Raymond Irving
>
> --- Andrew Gillett <an...@zo...> wrote:
> > Hello,
> >
> > I have had a problem with capturing keyboard events
> > in HTMLTextBox.  I
> > want to execute some code when the Enter key is
> > pressed in a textbox,
> > but while the keyboard event handling in HTMLTextBox
> > works quite well it
> > doesn't allow me to find out which key was pressed.
> >
> > The getInnerHTML function in htmltextbox.js
> > contains:
> >     this._inlineEvents+=' onkeypress="return
> > htc._e(\'keypress\',this);" '
> >     +' onkeyup="return htc._e(\'keyup\',this);" '
> >     +' onkeydown="return htc._e(\'keyup\',this);" '
> >
> > The event handlers are invoked with two arguments: a
> > String that give
> > the kind of event and a reference to the TextBox
> > object. The event
> > handler in my own code gets the reference to the
> > object but this doesn't
> > let me find out which key was pressed.
> >
> > I have worked around this problem in my own copy of
> > DynAPI by adding the
> > "event" object to the arguments passed to the event
> > handler:
> >     this._inlineEvents+=' onkeypress="return
> > htc._e(\'keypress\',this,event);" '
> >     +' onkeyup="return
> > htc._e(\'keyup\',this,event);" '
> >     +' onkeydown="return
> > htc._e(\'keyup\',this,event);" '
> >     ...
> >
> > The _e function also needs to change from:
> >  p._e = function(evt,elm){
> >        var rt = this._oldHCTBEvt(evt,elm);
> > to
> >  p._e = function(evt,elm,arg){
> >        var rt = this._oldHCTBEvt(evt,elm,arg);
> >
> >
> > This allows my own event handler two receive two
> > parameters: the object
> > that raised the event and the event itself.
> >
> > May I suggest this change be made to the library?
> > I'm hoping it won't
> > cause any cross-browser portability problems.
> >
> >
> >
> > On a slightly different matter, while I was poking
> > about in
> > htmltextbox.js, I noticed that line 72 contained:
> >     if(this.getElm()) this.elm.readonly=(b)?
> > 'readyonly':'';
> >
> > The 'readyonly' looks like a typo which should
> > probably be fixed.
> >
> >
> >
> > regards
> > Andrew Gillett
> >
> > ps. I'm using the latest version for DynAPI3 from
> > CVS.
> >
> >
> >
> >
> >
> >
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