Review Request: Change activity by rolling the mouse wheel over the showActivityManager widget.

[Sebastian Kügler]

Hi Simone,

Thanks for your patch to the activity switcher. Making pieces of the UI easier 
to use is always welcome. I thought a bit about your patch, though, and I see 
two problems with it as it is right now.

On Monday, December 26, 2011 23:45:58 Simone Gaiarin wrote:
> Rolling the mouse wheel over the showActivityManager change the current
> activity. In this way it's not necessary to open the activities menu,
> select the activity and close the menu and the activity change is faster.

I think that this change is problematic from an interaction point of view, it 
seems very easy to accidentally trigger, and in that case all windows are 
gone, the desktop changes completely, and users who triggered this feature 
unaware of it will likely be very confused and think they've just broken their 
system. It's also not discoverable, making it hard to find even for those that 
would understand it.

Not sure how to address those, maybe you have an idea?

Cheers,
-- 
sebas

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