vaadin/tori — Issue #77: LazyLayout's scroll adjustment bugs when scrolling up
Author: wolfie
Created: 2012-01-10 13:08:48+00:00
State: open
Labels: bug

When scrolling up, the scroll adjustment bugs a bit. Since it adjusts for elements that are being replaced above the current scroll location, the following **seems** to happen:

# Placeholder is above the screen
# The user scrolls up so that the placeholder's bottom half is visible
# New component is fetched
# Scroll adjustment adjusts for the partially visible placeholder -> component swap

This might be the reason for jarring the viewer. The scroll adjustment should make sure that the elements that are visible below the partially loaded thingy stay in place.

...might. but may not be the cause too...

This probably won't be fixed for alpha1