[OpenLayers-Users] OT: Event propagation problem...

[Steve Lime]

What I ended up with is a div that covers the map and then I did something like:

  var elem = document.getElementById('myDiv');
  elem.addEventListener( 'click', stopPropagation, false);
  elem.addEventListener( 'mousedown', stopPropagation, false);
  elem.addEventListener( 'mousemove', stopPropagation, false);
  elem.addEventListener('mouseup', stopPropagation, false);
  elem.addEventListener('mouseover', stopPropagation, false);
  elem.addEventListener('mouseout', stopPropagation, false);

where stopPropagation is:

 function stopPropagation(e) { 
   if (e && e.stopPropagation) evt.stopPropagation();
   else if (window.event) window.event.cancelBubble = true;
 }

Then I just hide/show the overlayed div as necessary. Works like a charm.

Steve

>>> On 11/29/2007 at 10:42 AM, in message
<34E056CD4D475841B8C9ABCE956F92F615A37C at mrburns.KorOffice.local>, "Jeff Dege"
<jdege at korterra.com> wrote:
> I had a similar problem, and I hacked in a little kludge to allow me to turn 
> off event propogation entirely:
> 
> 	var map = new OpenLayers.Map('map', mapOptions);
> 	
> 	//This is a serious kludge, to allow us to turn off event handling on the 
> map,
>  	//when OpenLayers supports no such functionality.
> 	map.events.idle = false;
> 	map.events.originalTriggerEvent = openLayersMap.events.triggerEvent;
> 	map.events.triggerEvent = function(type, evt) {
> 		if (this.idle) return;
> 		this.originalTriggerEvent(type, evt);
> 	};
> 
> It's ugly, and it may get me into real trouble, some time in the future, but 
> it works.
> 
> If I set map.events.idle = true, no events fire at all.
> 
> 
> -----Original Message-----
> From: Steve Lime [mailto:Steve.Lime at dnr.state.mn.us] 
> Sent: Wed 11/28/2007 5:12 PM
> To: Jeff Dege; users at openlayers.org 
> Subject: RE: [OpenLayers-Users] OT: Event propagation problem...
>  
> No response at all, the content covers the whole map interface at the 
> moment. Whether that works as a design (from a user perspective) is yet to be 
> seen.
> 
> Steve
> 
>>>> On 11/28/2007 at 5:01 PM, in message
> <34E056CD4D475841B8C9ABCE956F92F615A37B at mrburns.KorOffice.local>, "Jeff Dege"
> <jdege at korterra.com> wrote:
>> Do you want the map to not respond to clicks on your help or legend div?
>> 
>> If so, you'll need to define event handlers, the way Popups do.
>> 
>> Or do you want the map to not respond at all, while your help or legend is 
>> visible?
>> 
>> 
>> -----Original Message-----
>> From: users-bounces at openlayers.org on behalf of Steve Lime
>> Sent: Wed 11/28/2007 4:56 PM
>> To: users at openlayers.org 
>> Subject: [OpenLayers-Users] OT: Event propagation problem...
>>  
>> Hi all: Slightly off-topic question. I'm working on an interface that plops 
>> help and legend content over the top of an OpenLayers
>> map. Problem is that mouse events continue to propagate through the help or 
>> legend content to OpenLayers. Anyone aware of
>> an easy way to stop that or do I need to go ahead and define event handlers 
>> (that do nothing) for the div that holds this other
>> content?
>> 
>> Steve
>> 
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