Comment 0 for bug 877130

Expanding and collapsing the tree items in the 'Installed' tab is unnecessary difficult, as the only functional areas are the small arrows to the left. I think it'd make sense if they could also be expanded/collapsed by double-clicking anywhere on them.

Another issue is trying to collapse and then expand an item without moving your mouse. I'll offer my explanation in the form of the following reproduction-steps:

1) Go to the 'Installed tab', and click anywhere once on any tree item (without opening it).
2) Move your mouse to another tree item, but this time single-click its arrow . It should expand.
3) Without moving your mouse, single-click the arrow again to try to close it.
4) Witness that rather than collapsing, it just becomes selected.
5) Still not moving your mouse, click it again. And again. And again.
6) Pretend you're an end-user.

Ubuntu version: 11.10, 32-bit (fresh installation)
Software Center version: 5.0.1.4

Bonus: bug #872974