Layout Customizer Keyboard Interaction

[Anastasia Cheetham]

Ok, so here's a summary of my understanding of the desired behaviour.  
We'll implement this, unless we're told that it's wrong :-)

- If an attempt is made to move a portlet ahead of a locked portlet  
(either by mouse or by keyboard), a warning message will appear. The  
message will NOT appear at any other times e.g. below the last spot in  
a column. So if the user has selected the last portlet in a column and  
presses ctrl+down arrow, nothing will happen, and no warning will  
appear.

- When the user drags a portlet over a locked portlet and the warning  
message appears, the drop marker will remain wherever it happened to  
last be, and if the user drops the portlet despite the warning, the  
portlet will be moved to wherever the drop marker was.

-- 
Anastasia Cheetham                   a.cheetham at utoronto.ca
Software Designer, Fluid Project    http://fluidproject.org
Adaptive Technology Resource Centre / University of Toronto