TreeAPI

Implements common APIs for tree-like components..

close	closes the branch with the specified id
closeAll	closes all branches in the tree
getOpenItems	returns ids of the opened branches
getState	returns the current state of the view
isBranchOpen	checks whether the specified branch is open or closed
open	opens the branch with the specified id
openAll	opens all branches in the tree
setState	restores the specified state of a view

onAfterClose	fires after the branch has been closed
onAfterOpen	fires after the branch has been opened
onBeforeClose	fires the moment you attempt to close the tree branch
onBeforeOpen	fires the moment you attempt to open the tree branch
onItemCheck	called when the checkbox inside the tree item was checked

threeState

enable three-state checkboxes

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