[IPython-dev] widget models caching the view
Sat Feb 22 00:18:08 CST 2014
Right now, in the new widget system, when a view is created of a model,
the view is added to the model's view list here:
Since that code was written, we've settled on a more complete
understanding of the roles of views, models, and the python traits
classes. It seems that it would be better now to have a single view
cached with the model rather than a list of views, and if create_view is
called on a model that already has a view created, the already-created
view should be returned, rather than creating a new view. In other
words, it seems that the create_view function in the widget manager should:
1. check to see if model.view is set. If it is, return it
2. If model.view is not set, construct and return it, caching the new
view in the model.view attribute.
Brian, Jonathan, others? What do you think?
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