Class CustomTreeController<T>Abstract

constructor

• new CustomTreeController<T>(): CustomTreeController<T>

• Type Parameters

  • T

  Returns CustomTreeController<T>

copyPaste

dragDrop

dragDropIndicator

selection

Abstract addChildren

• addChildren(_sources, _target, _index?): T[]

• Process the list of source objects to be addedAsChildren when dropping or pasting onto the target item/object, return the list of objects that should visibly become the children of the target item/object

  Parameters

  • _sources: T[]
  • _target: T

    The object referenced by the item the drop occurs on
  • Optional _index: number

  Returns T[]

canAddChildren

• canAddChildren(_sources, _target): boolean

• Override if some objects should not be addable to others

  Parameters

  • _sources: T[]
  • _target: T

  Returns boolean

Abstract copy

• copy(_originals): Promise<T[]>

• Return a list of copies of the objects given for copy & paste

  Parameters

  • _originals: T[]

  Returns Promise<T[]>

Abstract createContent

• createContent(_object): HTMLElement

• Create an HTMLElement for the tree item representing the object. e.g. an HTMLInputElement

  Parameters

  • _object: T

  Returns HTMLElement

Abstract delete

• delete(_focussed): Promise<T[]>

• Remove the objects to be deleted, e.g. the current selection, from the data structure the tree refers to and return a list of those objects in order for the according CustomTreeItem to be deleted also

  Parameters

  • _focussed: T[]

    The object currently having focus

  Returns Promise<T[]>

draggable

• draggable(_object): boolean

• Override if some objects should not be draggable

  Parameters

  • _object: T

  Returns boolean

equals

• equals(_a, _b): boolean

• Checks if two objects of are equal. Default is _a == _b. Override for more complex comparisons. Useful when the underlying data is volatile and changes identity while staying the same.

  Parameters

  • _a: T
  • _b: T

  Returns boolean

Abstract getAttributes

• getAttributes(_object): string

• Retrieve a space separated string of attributes to add to the list item representing the object for further styling

  Parameters

  • _object: T

  Returns string

Abstract getChildren

• getChildren(_object): T[]

• Return the object's children to show when unfolding the tree item

  Parameters

  • _object: T

  Returns T[]

Abstract hasChildren

• hasChildren(_object): boolean

• Return true if the object has children that must be shown when unfolding the tree item

  Parameters

  • _object: T

  Returns boolean

Abstract setValue

• setValue(_object, _element): Promise<boolean>

• Process the proposed new value. The id of the html element on which the change occured is passed

  Parameters

  • _object: T
  • _element: HTMLInputElement | HTMLSelectElement

  Returns Promise<boolean>