Class AbstractHistoryStack<TStackItem>`Abstract`

Remarks

shared stack/context bookkeeping for HistoryManager, IHistoryManager and IIHistoryManager, which only differ in the shape of the stack item and of the recorded changes.

Type Parameters

TStackItem

Hierarchy (View Summary)

AbstractHistoryStack

Index

Constructors

Properties

configuration context event logger stack

Methods

clear initStack isStackItemEmpty moveStackIndex pop pushToStack updateContext

Constructors

constructor

new AbstractHistoryStack<TStackItem>(
configuration: THistoryConfiguration,
event: CanvasEvent,
): AbstractHistoryStack<TStackItem>
Type Parameters
- TStackItem
Parameters
- configuration: THistoryConfiguration
- event: CanvasEvent
Returns AbstractHistoryStack<TStackItem>
- Defined in history/AbstractHistoryStack.ts:21

Properties

configuration

configuration: THistoryConfiguration

context

context: THistoryContext

event

event: CanvasEvent

`Protected`logger

logger: Logger = ...

stack

stack: TStackItem[]

Methods

clear

clear(): void
Returns void
- Defined in history/AbstractHistoryStack.ts:76

`Protected`initStack

initStack(item: TStackItem): void
Parameters
- item: TStackItem
Returns void
- Defined in history/AbstractHistoryStack.ts:39

`Protected` `Abstract`isStackItemEmpty

isStackItemEmpty(item: TStackItem): boolean
Parameters
- item: TStackItem
Returns boolean
- Defined in history/AbstractHistoryStack.ts:31

`Protected`moveStackIndex

moveStackIndex(delta: -1 | 1, allowed: boolean): void
Parameters
- delta: -1 | 1
- allowed: boolean
Returns void
- Defined in history/AbstractHistoryStack.ts:61

pop

pop(): void
Returns void
- Defined in history/AbstractHistoryStack.ts:69

`Protected`pushToStack

pushToStack(item: TStackItem): void
Parameters
- item: TStackItem
Returns void
- Defined in history/AbstractHistoryStack.ts:44

`Protected`updateContext

updateContext(): void
Returns void
- Defined in history/AbstractHistoryStack.ts:33