[Chameleon] Creating a new widget

[Delfos, Jacob]

Rob,
 
I'm not completely sure, but I think after this line:
 
$szFunction = <<<EOT

Maybe you should have:
 
function showReport()
{
{$szShowReport};
         return true;
}
 
You can always check the source of the resulting page, to see what the
function body ended up looking like.
 
I believe there is a widget that puts values in a drop-down box
(quickzoom), which may do what you want. Alternatively, for searching
you can use the LocateByAttribute widget. I have recently adjusted it to
work with (hopefully) all vector formats (tested with TAB, DGN, DXF,
PostGIS, ESRI Personal Geodatabase). PostGIS required a little
workaround, but on my end it does now work. It's in CVS, or e-mail me if
you can't access CVS.
 
regards,
 
Jacob
 
 
 
 


________________________________

	From: chameleon-bounces at lists.maptools.org
[mailto:chameleon-bounces at lists.maptools.org] On Behalf Of Rob Male
	Sent: 21 September 2006 08:20
	To: chameleon at lists.maptools.org
	Subject: [Chameleon] Creating a new widget
	
	

	Hello List,
	
	I'm trying you create a widget using the tutorial from here
	
http://chameleon-tiki.maptools.org/tiki-index.php?page=Developing+a+new
	+Chameleon+Widget#attachments
	
	Everthing works up to when I modify 
	"function GetJavascriptFunctions()"  by adding the following.
	
	#########################################
	    function GetJavascriptFunctions()
	    {
	        // init vars
	        $aReturn = parent::GetJavascriptFunctions();
	
	        /////////  ADD CODE HERE IF NECESSARY /////////
	        // show the report
	        $szShowReport = strlen( $this->mszReport ) >
	0?"alert('".$this->mszReport."')":"";
	        $szJsFunctionName = "showReport";
	        $szFunction = <<<EOT
	        {
	         {$szShowReport};
	         return true;
	        }
	EOT;
	
	$aReturn[$szJsFunctionName] = $szFunction;
	
	        // return
	        return $aReturn;
	
	    // end GetJavascriptFunctions() function
	    }
	#########################################
	
	If the application is loaded with this function enabled
everthing is
	displayed except the map and the key map. Also the mouse click
will not
	submit.
	
	Is anyone able to help ?
	
	Really all I want is a widget that will allow me to display a
list of
	feature names from a postgis database, for example street names,
and
	zoom to the feature selected from the list.
	
	I have an application that does pretty well all that I need,
except this
	searching ablility, and unfortunately without searching it is as
good as
	useless.
	
	Is anyone able to point me to some detailed documentation on
Chameleon
	eg "Chameleon for Dummies",(I know it is wishful thinking, but
no harm
	in asking). I've been struggling for months as most of the
documentation
	I've found assumes you already have a pretty good grasp of PHP,
	Javascript, Mapserver and even Chameleon. Unfortunately in my
case this
	is not so.
	
	I was very impressed when I first discovered Chameleon after
trying to
	generate an application from scratch using Mapscript (especially
the
	zoom box) but getting to this point and not being able to
proceed any
	further is making me think I should "cut my losses" and return
to
	mapscript, where at least I could do the searching that I
require.
	
	Well I've had my whinge, if anyone has any suggestions (now be
nice)
	please let me know.
	
	Cheers
	Rob Male
	

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