Class TouchInputTracker

Implements

TouchContext

Index

Constructors

Accessors

Methods

addTouchPoints getCurrentTouchPointsCount getInitialTouchPointsPositions notifyOnPan notifyOnZoom removeTouchPoints updateTouchPoints

Constructors

constructor

new TouchInputTracker(
canvas: HTMLCanvasElement,
inputObserver: RawUserInputObservable,
): TouchInputTracker
Parameters
- canvas: HTMLCanvasElement
- inputObserver: RawUserInputObservable
Returns TouchInputTracker
- Defined in input-state-machine/touch-input-context.ts:21

Accessors

canvas

get canvas(): HTMLCanvasElement
Returns HTMLCanvasElement
Implementation of TouchContext.canvas
- Defined in input-state-machine/touch-input-context.ts:70

Methods

addTouchPoints

addTouchPoints(points: TouchPoints[]): void
Parameters
- points: TouchPoints[]
Returns void
Implementation of TouchContext.addTouchPoints
- Defined in input-state-machine/touch-input-context.ts:26

getCurrentTouchPointsCount

getCurrentTouchPointsCount(): number
Returns number
Implementation of TouchContext.getCurrentTouchPointsCount
- Defined in input-state-machine/touch-input-context.ts:40

getInitialTouchPointsPositions

getInitialTouchPointsPositions(idents: number[]): TouchPoints[]
Parameters
- idents: number[]
Returns TouchPoints[]
Implementation of TouchContext.getInitialTouchPointsPositions
- Defined in input-state-machine/touch-input-context.ts:44

notifyOnPan

notifyOnPan(delta: Point): void
Parameters
- delta: Point
Returns void
Implementation of TouchContext.notifyOnPan
- Defined in input-state-machine/touch-input-context.ts:62

notifyOnZoom

notifyOnZoom(zoomAmount: number, anchorPoint: Point): void
Parameters
- zoomAmount: number
- anchorPoint: Point
Returns void
Implementation of TouchContext.notifyOnZoom
- Defined in input-state-machine/touch-input-context.ts:66

removeTouchPoints

removeTouchPoints(identifiers: number[]): void
Parameters
- identifiers: number[]
Returns void
Implementation of TouchContext.removeTouchPoints
- Defined in input-state-machine/touch-input-context.ts:32

updateTouchPoints

updateTouchPoints(pointsMoved: TouchPoints[]): void
Parameters
- pointsMoved: TouchPoints[]
Returns void
Implementation of TouchContext.updateTouchPoints
- Defined in input-state-machine/touch-input-context.ts:54