[PATCH 2/3] shell: add panel height limiation when moving a window

[Juan Zhao]

On Wed, 2012-07-25 at 14:28 -0700, Bill Spitzak wrote: 
> 
> Juan Zhao wrote:
> > On Tue, 2012-07-24 at 23:17 -0700, Bill Spitzak wrote:
> >> On 07/24/2012 10:32 PM, Juan Zhao wrote:
> >>
> >>>> Therefore I suggest that the sample client work as proposed, and
> >> only
> >>>> prevent that point from being obscured.
> >>> Do you mean, avoiding the places where it could triger the drag to
> >> be
> >>> obscured?
> >> I mean only the point that is clicked. It avoids *one* place that can 
> >> trigger a window drag, not all of them.
> >>
> > It should be defined in the client side.
> > Getting lost....
> 
> What I am saying is that the shell can assume that if the client 
> triggers a window drag for a click at 100,100, that is will *always* 
> trigger a window drag for a click at 100,100.
> 
> This means that the only point that must not be obscured is 100,100. It 
> does not matter if the client also triggers a drag from the point 
> 200,200. The user by dragging 100,100 can move 200,200 off the screen. 
> But the user will still be able to get it back because they can still 
> grab 100,100 and move the window so 200,200 is back on the screen.
> 
> The shell can make similar assumptions about resizes. If the clicked 
> point is distance xy from a moving corner, it can assume that the point 
> at that distance will always trigger a resize of that corner. This means 
> that when resizing it only has to make sure the point still exists in 
> the window and is not obscured.

I sent a new patch related to the implementation.

Thanks,
Juan

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