Bug 427407

Description libing wang 2014-02-04 15:14:31 EST

Currently the widget has an option to render the first level children from the root in a drop down list. 
To give more flexibility in this area, we will support up to 2 selectors in the header.
User can choose the number of selectors from 0 to 2.
0: no selector, all the first level children are rendered in the folder view of the widget.

1: 1 selector, all the first level children are rendered in the first selector's drop down list.

2: 2 selectors, all the second level children based on the first selector's selection are rendered in the second selector's drop down list.