I've been writing an application using Om, and I've come across a problem I
haven't been able to find a good solution for. I'd be grateful for any
ideas people might have on how to proceed.
In a nutshell, I have a bunch of elements that need to be arranged
according to a specific algorithm. They cannot overlap, so I need to know
the sizes of all the elements in order to arrange them.
Om has an IDidMount protocol which is called after the component has been
mounted into the DOM. I can use this to find out the size of the element:
(let [node (get-node owner)]
[(.-offsetWidth node) (.-offsetHeight node)])
Elements can be hidden with "visibility: hidden" until their sizes are
known.
The problem that's stumping me is how to deliver the sizes back to the
containing component so that all the elements can be arranged correctly.
The most obvious way is via the cursor, but I don't like the idea of mixing
application state with local display information. Can anyone think of a
better way?
- James
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