Arrangers should hide panes that aren't visible

Description

The CardArranger and CardSlideInArranger call setShowing(false) on panes that aren't currently visible. The other arrangers should do the same. This is particularly important given the fix for ENYO-548, which can make it a serious performance win.

Environment

any

Assignee

Unassigned

Reporter

Mark Bessey (Enyo Team)

Labels

None

External issue ID

None

Tango Test Run Elements

None

Old Issue Key

None

Story Points

8

Components

Sprint

None

Fix versions

Affects versions

Priority

High
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