[OpenLayers-Users] Problem clicking on a map (OL-2.5) - RESOLVED

[David R Robison]

I found the problem... On my page I have a fixed header and footer and a 
client region with the style "overflow: scroll". The problem is in 
getMousePosition:

    getMousePosition: function (evt) {
        if (!this.element.offsets) {
            this.element.offsets = 
OpenLayers.Util.pagePosition(this.element);
            this.element.offsets[0] += (document.documentElement.scrollLeft
                         || document.body.scrollLeft);
            this.element.offsets[1] += (document.documentElement.scrollTop
                         || document.body.scrollTop);
        }
        return new OpenLayers.Pixel(
            (evt.clientX + (document.documentElement.scrollLeft
                         || document.body.scrollLeft)) - 
this.element.offsets[0]
                         - (document.documentElement.clientLeft || 0),
            (evt.clientY + (document.documentElement.scrollTop
                         || document.body.scrollTop)) - 
this.element.offsets[1]
                         - (document.documentElement.clientTop || 0)
        );
    },

The first conditional "caches" the offsets. However, if the client area 
is scrolled, the new positions are not recalculated. If I comment out 
the conditional, then everything works great. I'm not sure this is 
clear... Any thoughts? David
 

Eric Lemoine wrote:
> On Thu, Jun 5, 2008 at 6:18 PM, David R Robison
> <drrobison at openroadsconsulting.com> wrote:
>   
>> We are having a pecular problem when clicking on a map. The map is on a
>> large web page. If the page is scrolled partway down (not positioned at
>> the top of the map), clicking on the map will return an XY position that
>> is above the actual click. If we scroll the page back to the top, then
>> the clicking works. We are using OL-2.5. Has anyone else experienced
>> this?
>>     
>
> No. Do you a public page where we can see that, or some code for
> someone to reproduce?
>
>   
>> Was it fixed in 2.6?
>>     
>
> Dunno.
>
>   
>> Thanks, David Robison
>>     
>
> --
> Eric
>   

-- 

David R Robison
Open Roads Consulting, Inc.
708 S. Battlefield Blvd., Chesapeake, VA 23322
phone: (757) 546-3401
e-mail: drrobison at openroadsconsulting.com
web: http://openroadsconsulting.com
blog: http://therobe.blogspot.com
book: http://www.xulonpress.com/book_detail.php?id=2579

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