[Chameleon] HTML Legend with Javascript

[Robin Brown]

Paul,

I have made all the changes you indicated but I still have the refresh problem.  The
code creates an expanding/collapsing legend but with any zoom/update etc, all folders
go back to the starting state of closed.

Am I missing something?  Should my legend still have all divisions with
style="display:'none'"? or should I be checking for something?

Robin


Quoting Paul Spencer <pagameba at magma.ca>:

> Warning: This message has had one or more attachments removed
> Warning: (jsExpander.js).
> Warning: Please read the "VirusWarning.txt" attachment(s) for more information.
> 
> Robin,
> 
> this gets a little more complicated ... I've extracted the code into a 
> separate js and css file (attached).
> 
> You can remove the cExpander related javascript and <style> sections in 
> your application template and add the following:
> 
> <script language="JavaScript" src="jsExpander.js"></script>
> <link href="jsExpander.css" rel="stylesheet" type="text/css">
> 
> Your legend template is slightly modified, in the group section add:
> 
> //this is the existing line
> oGroup = new cExpander( CWCDHTML_GetLayer( '[leg_group_name]', true ));
> //this is the new line
> goExpanderManager.add( oGroup );
> 
> in your application template, you will also need to add:
> 
> <input type="hidden" name="ExpanderStatus" value="[$ExpanderStatus|$]">
> 
> and right after the legend template widget you will need to add:
> 
>    <cwc2 type="LegendTemplate" visible="true" embedded="true" 
> template="fancy_legend.html" popupstyleresource="TextButtons" 
> popupwidth="500" popupheight="400" status="false" menubar="false"/>
> 
> <script language="JavaScript" type="text/javascript">
> goExpanderManager.formElement = document.forms[0].ExpanderStatus;
> goExpanderManager.initialize();
> </script>
> 
> Cheers,
> 
> Paul
> 
> Robin Brown wrote:
> > Paul,
> > 
> > Nope, not working:)  I quickly gave up as I would need too many variables to get
> > everything running smoothly and as you suggested, this would cause problems in the
> > future.  I am now using the code you so kindly provided.  I am having trouble with
> the
> > refresh problem.  Is it possible to change the legend template file from the
> chameleon
> > template where I have the script?  I tried to check the value of
> > this.element.style.display in my legend template and use this value but I get an
> error.
> >  I think it is because on the initial render, these values would not be set yet? 
> I'm
> > not entirely sure it is even possible to do this.  Sorry to be asking so many
> > questions.  I am new to all of this and have been struggling with the legend for
> the
> > last 2+ weeks.  Also, is it ok for me to put this up on the wiki after I get it
> > functioning properly?  It is really your code but if you don't mind, I would like
> to do
> > anything I can to help new users as there is not much out there on creating
> dynamic
> > legends.  Thanks again for all your help.
> > 
> > Robin
> > 
> > 
> > Quoting Paul Spencer <pagameba at magma.ca>:
> > 
> > 
> >>let me know if you get it working ... I did try a solution that used 
> >>metadata in the map file but I generally avoid that as changes to the 
> >>map file can break things if you are not very careful about keeping all 
> >>the metadata synchronized etc.
> >>
> >>Robin Brown wrote:
> >>
> >>>Paul,
> >>>
> >>>Wow, thanks.  This looks very complicated.  I would not have been able to do this
> >>
> >>on my
> >>
> >>>own!  I think though that I am going to try something else first:)  I was looking
> >>
> >>at
> >>
> >>>the wiki for HTML legends and I saw that you can set wms variables and check them
> >>
> >>in
> >>
> >>>the legend template.  I thought for each layer I can specify if it has classes or
> >>
> >>not. 
> >>
> >>>If it does, I will start a new division and end that division in the
> >>
> >>[leg_class_html]
> >>
> >>>section.  If the layer doesn't have classes, I won't bother starting a new
> >>
> >>division. 
> >>
> >>>That way I don't have to worry about closing for those that had no classes.  Does
> >>
> >>this
> >>
> >>>make sense?  I think it will be something like this:
> >>>
> >>>
> >>
> >>-- 
> >>  -----------------------------------------------------------------
> >>|Paul Spencer                           pspencer at dmsolutions.ca   |
> >>|-----------------------------------------------------------------|
> >>|Applications & Software Development                              |
> >>|DM Solutions Group Inc                 http://www.dmsolutions.ca/|
> >>  -----------------------------------------------------------------
> >>
> >>
> > 
> > 
> > 
> 
> -- 
>   -----------------------------------------------------------------
> |Paul Spencer                           pspencer at dmsolutions.ca   |
> |-----------------------------------------------------------------|
> |Applications & Software Development                              |
> |DM Solutions Group Inc                 http://www.dmsolutions.ca/|
>   -----------------------------------------------------------------
> 


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