why double click does not work in rubric sometimes

A while ago, Stef reported that he could not select text anymore in the new Rubric-based interfaces (inspector, playground).

I noticed this as well but only occasionally. Here is what I found.

TextMorph uses a kind of a simulation to support smart selection. As a result, you basically can do:

- click once at the beginning of a parenthesis

- wait a couple of seconds

- click again

==> and the text is selected

Instead of this mechanism, Rubric relies on real double click events. So, in order to select something you have to click-click quickly.

Now, the issue is that every once in a while, somehow the image seems to stop receiving double clicks. I experienced this both on Windows and on Mac. As a consequence, it appears that you cannot select anymore with double click. To double check that this happens, you can try double clicking on the window title and you will see that it does not maximize anymore.

If you close the image and open it again, the problem gets fixed. This makes it difficult to reproduce and debug.

Cheers,

Doru

--