Dimensions methods return 0 if a parent has display: none

[Marc Diethelm]

Methods like height, innerHeight, outerWidth, etc. all return 0 if a parent of the selected element has display: none.

[dmethvin]

I think this is intended behavior. If the element itself is hidden the methods will unhide it long enough to get the dimensions.

[Marc Diethelm]

I really hope this can be fixed. If you need to use jQuery to precisely position elements, say in widget, while the widget itself is still hidden (display:none) you're bummed. Another more common case: any operation of this kind in a tab that is not currently selected. In case this can't be done feasibly, the documentation should say so. It actually took me awhile to realize what the problem was when I encountered this problem. Also the method returning 0 is clearly wrong IMO. If no dimension can be returned the value should be null or false.

[brandon]

duplicate of #3011