So, let's see:
They take this SlidingPanel which implements HasOneWidget (and though
AcceptsOneWidget) as their 'root'-Panel for the Activity.
The ActivityManager calls setWidget(widget) when a PlaceChange
happens. So they did an @Override setWidget(Widget widget). When this
method gets called, the SlidingPanel looks if it already contains
(inside the List<Widget>) the widget (if not appends it) and calls
show(index). show(index) looks if the new index is left or right of
the current index and then:
- add the new widget from the List<Widget> to the LayoutPanel
- set current widget to 0% left and 100% width
- set new widget to 100% left (newIndex > oldIndex) or -100% left
(newIndex < oldIndex) and 100% width
- run the animation
- remove old Widget from the LayoutPanel

It's a bit like they ignore the standards they created with
Activities. 'Cause in theory it's possible to show as many activities
as you like in parallel... ;)


On 13 Okt., 15:54, Thomas Broyer <[email protected]> wrote:
> The Expenses sample does just that; have a look at how it's done.
>
> Basically, the widget implementing AcceptsOneWidget will append the new
> child and slide it into view, and then remove the old child; instead of
> replacing one by the other.

-- 
You received this message because you are subscribed to the Google Groups 
"Google Web Toolkit" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to 
[email protected].
For more options, visit this group at 
http://groups.google.com/group/google-web-toolkit?hl=en.

Reply via email to