Class FocusProvider

The focus provider handles the focused objects per input source.

Inheritance
Object
BaseService
BaseEventSystem
BaseCoreSystem
FocusProvider
Inherited Members
Namespace: Microsoft.MixedReality.Toolkit.Input
Assembly: cs.temp.dll.dll
Syntax
public class FocusProvider : BaseCoreSystem, IMixedRealityEventSystem, IMixedRealityFocusProvider, IMixedRealityService, IDisposable, IMixedRealitySourceStateHandler, IMixedRealitySpeechHandler, IMixedRealityBaseInputHandler, IEventSystemHandler, IPointerPreferences
Remarks

There are convenience properties for getting only Gaze Pointer if needed.

Constructors

FocusProvider(IMixedRealityServiceRegistrar, MixedRealityInputSystemProfile)

Declaration
public FocusProvider(IMixedRealityServiceRegistrar registrar, MixedRealityInputSystemProfile profile)
Parameters
Type Name Description
IMixedRealityServiceRegistrar registrar
MixedRealityInputSystemProfile profile

Properties

FocusLayerMasks

The layer masks for the focus pointers to raycast against.

Declaration
public LayerMask[] FocusLayerMasks { get; }
Property Value
Type Description
LayerMask[]

GazePointerBehavior

Pointer behavior for the gaze pointer. We make gaze pointer unique because the internal gaze pointer actually cannot be referenced from here since it's an internal class.

Declaration
public PointerBehavior GazePointerBehavior { get; set; }
Property Value
Type Description
PointerBehavior

Name

Optional Priority attribute if multiple services of the same type are required, enables targeting a service for action.

Declaration
public override string Name { get; protected set; }
Property Value
Type Description
String
Overrides

NumFarPointersActive

The number of pointers that support far interaction (like motion controller rays, hand rays) that are active (IsInteractionEnabled == true), excluding the gaze cursor

Declaration
public int NumFarPointersActive { get; }
Property Value
Type Description
Int32

NumNearPointersActive

Number of IMixedRealityNearPointers that are active (IsInteractionEnabled == true).

Declaration
public int NumNearPointersActive { get; }
Property Value
Type Description
Int32

PointerMediators

Declaration
public IReadOnlyDictionary<uint, IMixedRealityPointerMediator> PointerMediators { get; }
Property Value
Type Description
IReadOnlyDictionary<UInt32, IMixedRealityPointerMediator>

PrimaryPointer

Declaration
public IMixedRealityPointer PrimaryPointer { get; }
Property Value
Type Description
IMixedRealityPointer

Priority

Optional Priority to reorder registered managers based on their respective priority, reduces the risk of race conditions by prioritizing the order in which managers are evaluated.

Declaration
public override uint Priority { get; }
Property Value
Type Description
UInt32
Overrides

UIRaycastCamera

The Camera the EventSystem uses to raycast against.

Declaration
public Camera UIRaycastCamera { get; }
Property Value
Type Description
Camera
Remarks

Every uGUI canvas in your scene should use this camera as its event camera.

Methods

Destroy()

Optional Destroy function to perform cleanup of the service before the Mixed Reality Toolkit is destroyed.

Declaration
public override void Destroy()
Overrides

GenerateNewPointerId()

Generate a new unique pointer id.

Declaration
public uint GenerateNewPointerId()
Returns
Type Description
UInt32

GetFocusedObject(IMixedRealityPointer)

Gets the currently focused object for the pointing source.

Declaration
public GameObject GetFocusedObject(IMixedRealityPointer pointingSource)
Parameters
Type Name Description
IMixedRealityPointer pointingSource
Returns
Type Description
GameObject

Currently Focused Object.
Remarks

If the pointing source is not registered, then the Gaze's Focused GameObject is returned.

GetPointerBehavior(IMixedRealityPointer)

Gets the PointerBehavior for a given pointer

Declaration
public PointerBehavior GetPointerBehavior(IMixedRealityPointer pointer)
Parameters
Type Name Description
IMixedRealityPointer pointer
Returns
Type Description
PointerBehavior

GetPointerBehavior<T>(Handedness, InputSourceType)

Gets the behavior for the given pointer type.

Declaration
public PointerBehavior GetPointerBehavior<T>(Handedness handedness, InputSourceType sourceType)
    where T : class, IMixedRealityPointer
Parameters
Type Name Description
Handedness handedness

Handedness to query
InputSourceType sourceType
Returns
Type Description
PointerBehavior

PointerBehavior for the given pointer type and handedness. If right hand is enabled, left hand is not enabled, and Handedness.Any is passed, returns value for the right hand.
Type Parameters
Name Description
T

GetPointers<T>()

Provides access to all registered pointers of a specified type.

Declaration
public IEnumerable<T> GetPointers<T>()
    where T : class, IMixedRealityPointer
Returns
Type Description
IEnumerable<T>
Type Parameters
Name Description
T

The type of pointers to request. Use IMixedRealityPointer to access all pointers.

Initialize()

The initialize function is used to setup the service once created. This method is called once all services have been registered in the Mixed Reality Toolkit.

Declaration
public override void Initialize()
Overrides

IsPointerRegistered(IMixedRealityPointer)

Checks if the pointer is registered with the Focus Manager.

Declaration
public bool IsPointerRegistered(IMixedRealityPointer pointer)
Parameters
Type Name Description
IMixedRealityPointer pointer
Returns
Type Description
Boolean

True, if registered, otherwise false.

OnSourceDetected(SourceStateEventData)

Raised when a source is detected.

Declaration
public void OnSourceDetected(SourceStateEventData eventData)
Parameters
Type Name Description
SourceStateEventData eventData

OnSourceLost(SourceStateEventData)

Raised when a source is lost.

Declaration
public void OnSourceLost(SourceStateEventData eventData)
Parameters
Type Name Description
SourceStateEventData eventData

OnSpeechKeywordRecognized(SpeechEventData)

Declaration
public void OnSpeechKeywordRecognized(SpeechEventData eventData)
Parameters
Type Name Description
SpeechEventData eventData

RegisterPointer(IMixedRealityPointer)

Registers the pointer with the Focus Manager.

Declaration
public bool RegisterPointer(IMixedRealityPointer pointer)
Parameters
Type Name Description
IMixedRealityPointer pointer
Returns
Type Description
Boolean

True, if the pointer was registered, false if the pointer was previously registered.

SetPointerBehavior<T>(Handedness, InputSourceType, PointerBehavior)

Sets the PointerBehavior for a given pointer type, handedness, and input type

Declaration
public void SetPointerBehavior<T>(Handedness handedness, InputSourceType inputType, PointerBehavior pointerBehavior)
    where T : class, IMixedRealityPointer
Parameters
Type Name Description
Handedness handedness

Specify Handedness.Any to apply to all handedness, or specify a specific handedness to just disable, right, left.
InputSourceType inputType
PointerBehavior pointerBehavior
Type Parameters
Name Description
T

All pointers that are of this type, or a subclass of this type, will have the given behavior

SubscribeToPrimaryPointerChanged(PrimaryPointerChangedHandler, Boolean)

Declaration
public void SubscribeToPrimaryPointerChanged(PrimaryPointerChangedHandler handler, bool invokeHandlerWithCurrentPointer)
Parameters
Type Name Description
PrimaryPointerChangedHandler handler
Boolean invokeHandlerWithCurrentPointer

TryGetFocusDetails(IMixedRealityPointer, out FocusDetails)

Gets the currently focused object for the pointing source.

Declaration
public bool TryGetFocusDetails(IMixedRealityPointer pointer, out FocusDetails focusDetails)
Parameters
Type Name Description
IMixedRealityPointer pointer
FocusDetails focusDetails
Returns
Type Description
Boolean

TryOverrideFocusDetails(IMixedRealityPointer, FocusDetails)

Sets the FocusDetails of the specified pointer, overriding the focus point that was currently set. This can be used to change the FocusDetails of a specific pointer even if focus is locked.

Declaration
public bool TryOverrideFocusDetails(IMixedRealityPointer pointer, FocusDetails focusDetails)
Parameters
Type Name Description
IMixedRealityPointer pointer
FocusDetails focusDetails
Returns
Type Description
Boolean

True if the FocusDetails were set successfully. False if the pointer is not associated with the FocusProvider.

UnregisterPointer(IMixedRealityPointer)

Unregisters the pointer with the Focus Manager.

Declaration
public bool UnregisterPointer(IMixedRealityPointer pointer)
Parameters
Type Name Description
IMixedRealityPointer pointer
Returns
Type Description
Boolean

True, if the pointer was unregistered, false if the pointer was not registered.

UnsubscribeFromPrimaryPointerChanged(PrimaryPointerChangedHandler)

Declaration
public void UnsubscribeFromPrimaryPointerChanged(PrimaryPointerChangedHandler handler)
Parameters
Type Name Description
PrimaryPointerChangedHandler handler

Update()

Optional Update function to perform per-frame updates of the service.

Declaration
public override void Update()
Overrides

Explicit Interface Implementations

IMixedRealityFocusProvider.GlobalPointingExtent

Maximum distance at which all pointers can collide with a GameObject, unless it has an override extent.

Declaration
float IMixedRealityFocusProvider.GlobalPointingExtent { get; }
Returns
Type Description
Single

Implements

IEventSystemHandler