Class PinchDetector

Wraps PinchDetectionStrategy inside PinchDetectorStateMachine for pinch events

Index

Constructors

Properties

config pinchDetectionStrategy pinchDetectorStateMachine pinchStrength

Accessors

onPinchCancel onPinchDown onPinchUp

Methods

createPinchDetectionStrategy getPinchStrength isPinching setupPinchEventCallback

Constructors

constructor

new PinchDetector(config: PinchDetectorConfig): PinchDetector
Parameters
- config: PinchDetectorConfig
Returns PinchDetector

Properties

`Private`config

config: PinchDetectorConfig

`Private`pinchDetectionStrategy

pinchDetectionStrategy: any

`Private`pinchDetectorStateMachine

pinchDetectorStateMachine: default = ...

`Private`pinchStrength

pinchStrength: number = 0

Accessors

onPinchCancel

get onPinchCancel(): PublicApi<void>
Event called when the user's pinch is canceled by the system.

Returns PublicApi<void>

onPinchDown

get onPinchDown(): PublicApi<void>
Event called when the user has successfully pinched down.

Returns PublicApi<void>

onPinchUp

get onPinchUp(): PublicApi<void>
Event called when the user has released pinching after they have successfully pinched down.

Returns PublicApi<void>

Methods

`Private`createPinchDetectionStrategy

createPinchDetectionStrategy(): PinchDetectionStrategy
Returns PinchDetectionStrategy

getPinchStrength

getPinchStrength(): number
Returns a normalized value from 0-1, where: 0 is the distance from a finger tip to the thumb tip in resting/neutral hand pose. 1 is when a finger tip to thumb tip are touching/pinching

Returns number

isPinching

isPinching(): boolean
Determines if the user is pinching

Returns boolean

`Private`setupPinchEventCallback

setupPinchEventCallback(): void
Returns void