[ydn-javascript] Re: eventing problems on TreeView with complex HTMLNode

Thank you very much! I finally got it working.
--- In ydn-javascript@yahoogroups.com, Satyam wrote:
>
> If you check the values of variables search and fruits at the time of=20
> setting the listeners for the events, both are null because the calls to=
=20
> getElementById fail to find the elements. The TreeView doesn't draw the=
=20
> elements of collapsed branches until they are expanded so when you just=20
> have the tree drawn with all branches collapsed, there is no search box=20
> and there is no fruits dropdown so there is nothing to be found. You=20
> can create the nodes with the property renderHidden set to true to force=
=20
> nodes to be drawn, even children of collapsed ones.
>=20
> http://developer.yahoo.com/yui/docs/YAHOO.widget.Node.html#property_rende=
rHidden
>=20
> Since you are using existing markup you might use yuiConfig like:
>=20
> Yahoo
>=20
> or set the property once in all nodes after you create the tree and=20
> before you render it by doing:
>=20
> tree.setNodesProperty('renderHidden',true);
>=20
> http://developer.yahoo.com/yui/docs/YAHOO.widget.TreeView.html#method_set=
NodesProperty
>=20
> Satyam
>=20
> blakesys escribi=F3:
> > Thanks for your reply. That is one of the first things I tried. But i=
t doesn't work. Here is my example that tries to stop the events:
> >
> > http://arthurblake.thruhere.net/treeviewproblem2.html
> >
> > I attach the event handlers to the div that encloses the item in the tr=
ee and attempt to stop the event. My event handlers are never even getting=
called... but they do get called if I don't create the tree.
> >
> > I thought about your second approach as well, but it's much more of a p=
ain to implement, and I wanted to avoid that if at all possible.
> >
> >
> > --- In ydn-javascript@yahoogroups.com, Satyam wrote:
> >=20=20=20
> >> The problem is that you are not capturing the events yourself in the=20
> >> controls you have added and preventing their propagation up to their=20
> >> containers. Events at any level bubble up through the DOM element=20
> >> hierarchy unless it is explicitly prevented. You are not preventing=20
> >> this effect and it will simply bubble up naturally and will be picked =
up=20
> >> by whatever listener is out there, in this case the key and click even=
ts=20
> >> of the container. So, one way is for you to put listeners for the=20
> >> events you want to allow in this events and use=20
> >> YAHOO.util.Event.stopPropagation to prevent the bubbling from reaching=
=20
> >> the TreeView or you could place your controls in floating panels outsi=
de=20
> >> of the TreeView hierarchy and have them position and show at the=20
> >> appropriate places when needed. Being outside of the same DOM branch,=
=20
> >> their events cannot bubble into a lateral branch.
> >>
> >> Satyam
> >>
> >>
> >> blakesys escribi=F3:
> >>=20=20=20=20=20
> >>> I have this really pesky problem with YUI. It has been bothering me =
for a long time, and I cannot figure it out.
> >>>
> >>> I am using a YAHOO.widget.TreeView with many YAHOO.widget.HTMLNode ob=
jects as the leaf nodes of the tree.
> >>>
> >>> My HTMLNode has complex html that has a gui in of itself that can rec=
eive keyboard input, has drop down menus etc.
> >>>
> >>> The problem is that the tree is somehow interfering with routine even=
ts in my HTMLNode such that I cannot even type in a text box without holdin=
g the mouse down.
> >>>
> >>> I cannot figure out how to configure the tree to leave the events alo=
ne.
> >>>
> >>> Here is a small self-contained example that demonstrates the problem:=
=20=20
> >>>
> >>> http://arthurblake.thruhere.net/treeviewproblem.html
> >>>
> >>> Thanks in advance for any help or insight you might have...
> >>>
> >>>
> >>>
> >>> ------------------------------------
> >>>
> >>> Yahoo! Groups Links
> >>>
> >>>
> >>>
> >>> ---------------------------------------------------------------------=
---
> >>>
> >>>
> >>> No virus found in this incoming message.
> >>> Checked by AVG - www.avg.com=20
> >>> Version: 8.5.375 / Virus Database: 270.13.3/2217 - Release Date: 07/0=
3/09 18:11:00
> >>>
> >>>
> >>>=20=20=20=20=20=20=20
> >
> >
> >
> >
> > ------------------------------------
> >
> > Yahoo! Groups Links
> >
> >
> >
> > -----------------------------------------------------------------------=
-
> >
> >
> > No virus found in this incoming message.
> > Checked by AVG - www.avg.com=20
> > Version: 8.5.375 / Virus Database: 270.13.3/2217 - Release Date: 07/03/=
09 18:11:00
> >
> >
>