[OpenLayers-Users] Strange IE7 thingy

[Barry Hunter]

Just to say I have spotted similar thing :(

I ended up just commenting out the isLeftClick as I dont really care
which button it is (this is in an extension of defaultClick in
MouseDefaults Control)

As an exercise I echoed out the values of which and button and got

prompt('',"evt.which="+evt.which+"; evt.button="+evt.button);

Gives:

evt.which=undefined; evt.button=0

according to http://unixpapa.com/js/mouse.html, button should be 1.

They also suggest

   if (event.which == null)
      /* IE case */
      button= (event.button < 2) ? "LEFT" :
                ((event.button == 4) ? "MIDDLE" : "RIGHT");
   else
      /* All others */
      button= (event.which < 2) ? "LEFT" :
                ((event.which == 2) ? "MIDDLE" : "RIGHT");

which does get it right on my IE7 (and Firefox at least)

Barry

(if it makes a difference see it here: http://www.geograph.org.uk/mapper/ )

On 9/7/07, huub fleuren <huub.fleuren at geodan.nl> wrote:
> Hi
>     list
>
> In IE7 is see the strangest thing:
>
> in Events.js  it reads
>
>     isLeftClick : function(event) {
>         return (((event.which) && (event.which == 1)) ||
>                 ((event.button) && (event.button == 1)));
>
>     },
>
> in my app it's
>
> if(OpenLayers.Events.isLeftClick(e)) {// do}
>
> In IE this doesn't go, in FF it does go
>
> I checked the values: in isLeftClick
>         alert (((event.which) && (event.which == 1)) ||
>                 ((event.button) && (event.button == 1)));
> displays true (if leftclicked...)
>
> In IE7 alert(OpenLayers.Events.isLeftClick(e))  displays 0 (always: e.g.
> if i check with event.button == 2) )
>
> I changed to the following greasy construction
>
>     isLeftClick : function(event) {
>         if (((event.which) && (event.which == 1)) ||
>                 ((event.button) && (event.button == 1)));
>            return true
>          return false
>     },
>
> this works also  in IE7
>
> Now isn't that the strangest thing?
>
> Regards,
> Huub
>
> --
> =====================================
> Geodan IT b.v.
> Buitenhaven 27-A
> 5211 TP 's-Hertogenbosch (NL)
> -------------------------------------
> Tel: +31 (0)73 - 692 5151
> Fax:  +31 (0)73 - 692 5150
> Mobiel:
> -------------------------------------
> Postadres / mailing address
> President Kennedylaan 1
> 1079 MB Amsterdam (NL)
> -------------------------------------
> E-mail: huub.fleuren at geodan.nl
> Website: www.geodan.nl
> Disclaimer: www.geodan.nl/disclaimer
> -------------------------------------
>
>
>
> _______________________________________________
> Users mailing list
> Users at openlayers.org
> http://openlayers.org/mailman/listinfo/users
>


-- 
Barry

- www.nearby.org.uk - www.geograph.org.uk -