** Branch linked: lp:~cimi/unity8/elastic-not-close-spread
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https://bugs.launchpad.net/bugs/1368287
Title:
[App switcher] Different drag behaviour between items that can and
cannot be closed
Status in Ubuntu UX bugs:
Fix Committed
Status in “unity8” package in Ubuntu:
In Progress
Status in “unity8” package in Ubuntu RTM:
In Progress
Bug description:
Drag to close is a great feature in application spread. In user
testing it had a great success rate and users understood it and knew
how to use it. The problem is the Dash item that's part of the spread
but is the only item which cannot be closed. Currently the Dash item
drag movement is similar to the movement of the items that actually
can be closed.
We want to make Dash drag different from others by restricting the
movement while still responding to user's drag.
------------------------------------------------------------
Desired solution
Use restriction algorithm for dash item so that it moves along the
drag but soon starts restricting the movement indicating that it's an
item that cannot be closed.
Here is quite nice elastic function that can be used:
function elastic( currentPosition, limit ) {
return limit * ( 1 - Math.pow( ( limit - 1 ) / limit, currentPosition ) )
}
Where:
limit is the highest value that ever can be returned by the function
current position is the value to be limited
It's a bit hard to describe the parameters, therefore I created a prototype
that should explain the usage.
Find it from: lp:~willow-team/willow/elasticRestriction
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