copy to clipboard fails

[walter]

In Sugar 100, the copy to clipboard in the journal palette fails with an attribute error on line 419 of jarabe/journal/palette.py

there is no attribute self._uid_list

Investigating.

[walter]

The obvious fix is to add self._uid_list = self._uid_list_cb() but it seems the code is a bit convoluted and perhaps it could all be improved.

[godiard]

I think this was changed when we moved to multiple selection.

What about replace:

for uid in self._uid_list:

by

for uid in self._get_uid_list_cb():

I think that was the intention of the change

[godiard]

Btw, is Sunday ;)

[walter]

​https://github.com/sugarlabs/sugar/pull/116