state

Documentation

Index

• type Change
  • func CombinedChange(changes ...Change) Change
  • func FuncChange(apply, revert func()) Change
• type ExtendableChange
• type History
  • func NewHistory() *History
  • func (h *History) CanRedo() bool
  • func (h *History) CanUndo() bool
  • func (h *History) Do(change Change)
  • func (h *History) LastChange() Change
  • func (h *History) Redo()
  • func (h *History) Undo()

Types

type Change

type Change interface {
	Apply()
	Revert()
}

func CombinedChange

func CombinedChange(changes ...Change) Change

func FuncChange

func FuncChange(apply, revert func()) Change

type ExtendableChange

type ExtendableChange interface {
	Extend(change Change) bool
}

type History

type History struct {
	// contains filtered or unexported fields
}

func NewHistory

func NewHistory() *History

func (*History) CanRedo

func (h *History) CanRedo() bool

func (*History) CanUndo

func (h *History) CanUndo() bool

func (*History) Do

func (h *History) Do(change Change)

func (*History) LastChange

func (h *History) LastChange() Change

func (*History) Redo

func (h *History) Redo()

func (*History) Undo

func (h *History) Undo()