I tried that:
- it works when i say
signal ("parent", "onchange", child);
or
signal ("myP", "onchange", myImg);
to stay in your example.
- it does not work when i say
signal ("child", "onchange", child);
or
signal ("myImg, "onchange", myImg);
and
the event is only connected in the
parent DOM element "myP"!
In the second case (which i was trying
to describe) the event is not even triggered
in the parent element.
I erroneously thought it would do, because
when i click on a child element the event
"bubbles" to the parent element (src) and
triggers the event there. But "signal" seems not
really simulate an event (click, change etc.)
So either i use your workaround, but then
the caller of "singal" has to know (determine?)
the parent element "src", the event is connected to.
Another workaround is to simulate an event via:
..
var evObj = document.createEvent('HTMLEvents');
evObj.initEvent ('change', true, true);
element.dispatchEvent (evObj);
..
This works - at least in Firefox 2.0.
Thanks again for your thoughts!
Helmut
On 27 Sep., 19:09, machineghost <[EMAIL PROTECTED]> wrote:
> >>If yes, could i set this behaviour onto a "wish list"
>
> That's Bob's department; I'm just some shmoe who reads this list ;-)
>
> However, I do have a thought to solve your problem: why not just pass
> the fake target as an extra argument of Signal? In other words, if
> you want to simulate a click on "myImg", do:
> signal ("ta", "onchange", myImg);
>
> Your function ta will then receive an extra argument of myImg, and you
> can do something like:
> function ta(e, fakeTarget){
> var target = e.target() != null ? e.target() : fakeTarget;
>
> }
>
> Would that work?
>
> Jeremy
>
> On Sep 26, 10:59 pm, hzlabs <[EMAIL PROTECTED]> wrote:
>
> > Thank You Jeremy!
>
> > Yes, i did understand that e.src() is not nessesarily e.target() -
> > target() could
> > be a child DOM element of src(). scr() is the DOM element the event is
> > connected to.
>
> > But what i did expect was, that when i send a signal to the target via
> > the
> > "signal" function - "myImg" in your example - the event object "e"
> > should
> > contain both e.target() ("myImg") and e.src() ("myP"). The later as
> > the
> > DOM element the function is connected to the event, target as the
> > element the signal was sent to..
>
> > My intention was to "simulate" an event, just as i would have been
> > clicked (for instance) on "myImg". Isn't that (at least one reason)
> > what "signal" was made for?
>
> > In my case the e.src() is not very useful because e.src()
> > is a "form" element which contains "input" and "textarea" elements.
> > The event is only connected to the form element.
>
> > Of course for a workaround i could step through all relevant child
> > elements of the form and directly connet the event to the single
> > elements. But in my eyes this is an inelegant (ugly) solution..
>
> > Wouldn't you consider this as reasonable?
> > If yes, could i set this behaviour onto a "wish list"?
> > Is there such a list?
>
> > Thanks again
> > Helmut
>
> > On 26 Sep., 19:32, machineghost <[EMAIL PROTECTED]> wrote:
>
> > > Short answer: I think you want e.src(), not e.target()
> > > Longer answer: The target of an event is the element that triggered
> > > the event. This is NOT the same as the element the event was attached
> > > to.
>
> > > For instance, let's say you had:
> > > <p id="myP"><img id="myImg" src="whatever.jpg"/></p>
> > > and you hooked up an "onclick" event to myP:
> > > connect("myP", "onclick", someFunction);
> > > If someone clicks on myImg, it will trigger myP's onclick event. In
> > > that case, the target would be myImg, but the src would be myP.
>
> > > When you manually trigger an event, it should have no target, because
> > > there was no element responsible for triggering it. However, it
> > > should still have a src(), which I believe is what you want.
>
> > > Hope that helps,
> > > Jeremy
>
> > > On Sep 20, 11:19 pm, hzlabs <[EMAIL PROTECTED]> wrote:
>
> > > > Hi all,
>
> > > > the situation:
>
> > > > a <textarea id="ta"> element is connected to the "onchange" event via
>
> > > > connect ("ta", "onchange", function (e) {alert (e.target())});
>
> > > > when a enter some text into the field and leave the textarea, the
> > > > event is triggered
> > > > and the message with the target info appears.
>
> > > > However when i trigger the event by
>
> > > > singal ("ta", "onchange");
>
> > > > "e.target" seems to be undefined / missing
> > > > (JS-Console Message:
>
> > > > "Fehler: this._event has no properties
> > > > Quelldatei:http://unsinn-intranet/js/MochiKit/MochiKit.js
> > > > Zeile: 5057")
>
> > > > What could be wrong / what could i have missunderstood?
>
> > > > (MochiKit Version = 1.4 Revision 1314)
>
> > > > Thank you!
> > > > Helmut
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