Abstract Class: HorizonLayer<P>

Defined in: src/sdk/components/horizon/HorizonLayer.ts:23

A base component for horizon layers.

Extends

• DisplayComponent<P>

Extended by

• HorizonCanvasLayer
• HorizonSharedCanvasLayer

Type Parameters

Type Parameter	Default type
P extends HorizonLayerProps	HorizonLayerProps

Constructors

Constructor

new HorizonLayer<P>(props): HorizonLayer<P>

Defined in: src/sdk/components/FSComponent.ts:73

Creates an instance of a DisplayComponent.

Parameters

Parameter	Type	Description
props	P	The propertis of the component.

Returns

HorizonLayer<P>

Inherited from

DisplayComponent.constructor

Properties

context?

optional context: [] = undefined

Defined in: src/sdk/components/FSComponent.ts:64

The context on this component, if any.

Inherited from

DisplayComponent.context

---

contextType?

readonly optional contextType: readonly [] = undefined

Defined in: src/sdk/components/FSComponent.ts:67

The type of context for this component, if any.

Inherited from

DisplayComponent.contextType

---

props

props: P & ComponentProps

Defined in: src/sdk/components/FSComponent.ts:61

The properties of the component.

Inherited from

DisplayComponent.props

Methods

destroy()

destroy(): void

Defined in: src/sdk/components/FSComponent.ts:98

Destroys this component.

Returns

void

Inherited from

DisplayComponent.destroy

---

getContext()

protected getContext(context): never

Defined in: src/sdk/components/FSComponent.ts:106

Gets a context data subscription from the context collection.

Parameters

Parameter	Type	Description
context	never	The context to get the subscription for.

Returns

never

The requested context.

Throws

An error if no data for the specified context type could be found.

Inherited from

DisplayComponent.getContext

---

isAttached()

protected isAttached(): boolean

Defined in: src/sdk/components/horizon/HorizonLayer.ts:31

Checks whether this layer is attached to a horizon component.

Returns

boolean

Whether this layer is attached to a horizon component.

---

isVisible()

isVisible(): boolean

Defined in: src/sdk/components/horizon/HorizonLayer.ts:39

Checks whether this layer is visible.

Returns

boolean

whether this layer is visible.

---

onAfterRender()

onAfterRender(node): void

Defined in: src/sdk/components/FSComponent.ts:87

A callback that is called after the component is rendered.

Parameters

Parameter	Type	Description
node	VNode	The component's VNode.

Returns

void

Inherited from

DisplayComponent.onAfterRender

---

onAttached()

onAttached(): void

Defined in: src/sdk/components/horizon/HorizonLayer.ts:70

This method is called when this layer is attached to its parent horizon component.

Returns

void

---

onBeforeRender()

onBeforeRender(): void

Defined in: src/sdk/components/FSComponent.ts:80

A callback that is called before the component is rendered.

Returns

void

Inherited from

DisplayComponent.onBeforeRender

---

onDetached()

onDetached(): void

Defined in: src/sdk/components/horizon/HorizonLayer.ts:115

This method is called when this layer is detached from its parent horizon component.

Returns

void

---

onProjectionChanged()

onProjectionChanged(projection, changeFlags): void

Defined in: src/sdk/components/horizon/HorizonLayer.ts:98

This method is called when this layer's horizon projection changes.

Parameters

Parameter	Type	Description
projection	HorizonProjection	This layer's horizon projection.
changeFlags	number	The types of changes made to the projection.

Returns

void

---

onSleep()

onSleep(): void

Defined in: src/sdk/components/horizon/HorizonLayer.ts:88

This method is called when this layer's parent horizon component is put to sleep.

Returns

void

---

onUpdated()

onUpdated(time, elapsed): void

Defined in: src/sdk/components/horizon/HorizonLayer.ts:108

This method is called once every update cycle.

Parameters

Parameter	Type	Description
time	number	The current time as a UNIX timestamp in milliseconds.
elapsed	number	The elapsed time, in milliseconds, since the last update.

Returns

void

---

onVisibilityChanged()

protected onVisibilityChanged(isVisible): void

Defined in: src/sdk/components/horizon/HorizonLayer.ts:63

This method is called when this layer's visibility changes.

Parameters

Parameter	Type	Description
isVisible	boolean	Whether the layer is now visible.

Returns

void

---

onWake()

onWake(): void

Defined in: src/sdk/components/horizon/HorizonLayer.ts:81

This method is called when this layer's parent horizon component is awakened.

Returns

void

---

render()

abstract render(): null | VNode

Defined in: src/sdk/components/FSComponent.ts:93

Renders the component.

Returns

null | VNode

A JSX element to be rendered.

Inherited from

DisplayComponent.render

---

setVisible()

setVisible(val): void

Defined in: src/sdk/components/horizon/HorizonLayer.ts:47

Sets this layer's visibility.

Parameters

Parameter	Type	Description
val	boolean	Whether this layer should be visible.

Returns

void