context-dashboard/memento/dashboard-caretaker.service.ts
Caretaker is responsible for undo and redo functionalities.
Methods |
Accessors |
constructor(originator: DashboardOriginatorService)
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Parameters :
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| backup |
backup()
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Adds current dashboard children state to undo stack and clears redo stack.
Returns :
void
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| redo |
redo()
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Applies previously undone change.
Returns :
DashboardChildrenState | undefined
Current state of dashboard children after applying previously undone change. |
| reset |
reset()
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Clears both undo and redo stack, sets current state as initial state and returns initial state.
Returns :
any
Initial state of dashboard children. |
| undo |
undo()
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Reverts last dashboard children change and puts it in redo stack.
Returns :
DashboardChildrenState | undefined
Current state of dashboard children after reverting last change. |
| undoStackLength |
getundoStackLength()
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Current undo stack length for defining undo button disable state.
Returns :
number
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| redoStackLastItem |
getredoStackLastItem()
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Redo stack latest item for defining redo button disable state and its' title.
Returns :
DashboardChildrenState
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