Hello everyone,
I've had a hard time trying to debug a problem on a Vector layer that
had tooltips as well as regular popups. It worked fine but from time to
time Firebug would log an error message like the following:
element is null
if(!google.gears){google.gears={factory:...setWidth,height:element.offsetHeight};}\n
OpenLayers.js (line 228)
I'm running OpenLayers 2.8. This error messed up javascript - zooming
and panning were broken, the current popup would remain un-close-able,
but other markers seemed to work just fine.
I managed to track this problem to a null element in Element.js. I'm not
sure why the element is null at that point, but it may be a safe thing
to do to check if the element exists before trying to change its style...
I attached a patch that should solve this (adds an if before setting the
style).
Hope it helps someone,
Regards,
Adrian
--- lib/OpenLayers/BaseTypes/Element.js.original 2009-08-04 15:42:45.000000000 +0300
+++ lib/OpenLayers/BaseTypes/Element.js 2009-08-04 15:40:43.000000000 +0300
@@ -47,7 +47,9 @@
hide: function() {
for (var i=0, len=arguments.length; i<len; i++) {
var element = OpenLayers.Util.getElement(arguments[i]);
- element.style.display = 'none';
+ if(element){
+ element.style.display = 'none';
+ }
}
},
@@ -61,7 +63,9 @@
show: function() {
for (var i=0, len=arguments.length; i<len; i++) {
var element = OpenLayers.Util.getElement(arguments[i]);
- element.style.display = '';
+ if(element){
+ element.style.display = '';
+ }
}
},
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