[Dojo-interest] Popping up a TooltipDialog with a Tree in it, size problem

Nick Fenwick neek at nickfenwick.com
Mon Apr 1 23:17:48 EDT 2013

Hi all,

I have a DropDownButton that contains a Tree.  I happen to create the 
Tree programatically.  See this sandbox example:


The first time you click the button, the dropdown opens but not all of 
the tree can be seen.  If you close and re-open the dropdown, the tree 
is now fully visible.

I cannot see how to cause the TooltipDialog to open so that the tree is 
fully visible the first time it opens.  I have handled the 'onOpen' 
event of the dialog, for example, which seems to be called after the 
Tree is fully rendered and the dialog is on-screen (if you breakpoint 
inside my open handler, you can see it's all rendered in the browser at 
that time) but calling resize() on the dialog doesn't cause it to 
contain its child.

I had thought it was to do with the async nature of my store in our real 
app, but putting together this simple example with a synchronous Memory 
store and hardcoded data also demonstrates the problem.

Setting doLayout:true on the tooltipdialog causes it to never lay itself 
out correctly.

There are other improvements that could be made, for example it would 
probably be simpler to extend DropDownButton rather than created a 
templated dijit which only contains a DropDownButton, but those issues 
are secondary to the main question.

Can someone shed some light on this please?

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