[ka-Map-users] Overlay mouse handler implementation

[The Bun]

Stéphane RIFF wrote:
> 
> Hi every one,
> 
> I have implement a simple overlay mouse event handler.
> I send you the code and hope it can help someone.
> Here is how it works. You can add to your xml definition in the "point" 
> element three new attributes "onclik, onmouseover, onmouseout" :
> 
> <point id="the_id"  x="x" y="y" redraw="true" onclick="pclick" 
> onmouseover="pover" onmouseout="pout">
> 
> the pclick, pover and pout are your own functions names that take the 
> pid for argument
> 
> example :
> function pclick (pid) {
>   alert(pid);
> }
> 
> Here is the modification I add :
> 
> Modify the kaXmlOverlay.js file like this :
> (the line starts with "++" are the ones I add)
> 
> kaXmlPoint.prototype.parse = function(point_element) {
> 
>     var i;
>     var x = parseFloat(point_element.getAttribute("x"));
>     var y = parseFloat(point_element.getAttribute("y"));
>     var redraw_a = point_element.getAttribute("redraw");
>     var redraw = false;
>     if (redraw_a == "true")    redraw = true;
> ++    var point_id = this.pid;
> ++    var clickHandler = point_element.getAttribute("onclick");
> ++    if(clickHandler) {
> ++      this.div.onclick = function () { 
> eval(clickHandler+"(\""+point_id+"\");"); };
> ++    }
> ++    var overHandler = point_element.getAttribute("onmouseover");
> ++    if(overHandler)
> ++      this.div.onmouseover = function () { 
> eval(overHandler+"(\""+point_id+"\");"); };
> ++    var outHandler = point_element.getAttribute("onmouseout");
> ++    if(outHandler)
> ++      this.div.onmouseout = function () { 
> eval(outHandler+"(\""+point_id+"\");"); };
>            
>     if (!this.shown) {
>         this.placeOnMap(x,y);
>         this.shown = true;
>     } else {
>         this.setPosition(x,y);
> ................
> }
> 
> I hope it's clear and it can help somebody.
> It's good for and seems to works well.
> 
> I can answer some questions if you needs
> 
> Thanks
> 
> -- 
> Stéphane RIFF
> stephane.riff at cerene.fr
> 
> CERENE SERVICES SA
> 3, rue Archimède
> 10600 La Chapelle-Saint-Luc - France
> Tel : 33 (0)3 25 74 11 78
> Fax : 33 (0)3 25 78 39 67
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> 

Hi Stéphane I have already sent you an email but my intention was to post
here in the forum, so sorry about this. Anyway that was only to tell again
that your solution is a good and better one of mine ( few posts down ). You
only forgot to say that you need to write your handler but this is pretty
obvious:

function pover( point_id ) {
                        alert( point_id.pid );
                     };    

I only need another extra help from someone who has already developed
something similar. We are essentially trying to replace Google Maps with
kamap, one of the things we like of Google are the windows generated with
the 2 methodss of the main GMap2 object of Google openInfoWindowHtml and
openInfoWindow where you can add data and html formatted text, like for
example "em", "href", "a" etc. I do not pretend to have something which is
the same with the shadow etc, but the "alert" function to communicate with
the user is obviously unaccetable.

I tried to analyze the Google code but honestly it is obfuscated so well
that for understanding what they doo it could take days or weeks of hard
work, I don't pretend to have the bubble with the arrow and the shadow
although that would be ideal but something better than the windows message
generated by the "alert" function. Any help would be greatly appreciated.

Kind Regards
Rosario Carbone

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