ReadonlyaliasReadonlyappearanceReadonlyconfigReadonlyconfigReadonlydataReadonlydescriptionReadonlyeditorReadonlyeditorReadonlyisReadonlylabelReadonlyvalidationReadonlyvalidationReadonlyvalidationReadonlyvalueReadonlyvariantReadonlyvariantAppends an event listener for events whose type attribute value is type. The callback argument sets the callback that will be invoked when the event is dispatched.
The options argument sets listener-specific options. For compatibility this can be a boolean, in which case the method behaves exactly as if the value was specified as options's capture.
When set to true, options's capture prevents callback from being invoked when the event's eventPhase attribute value is BUBBLING_PHASE. When false (or not present), callback will not be invoked when event's eventPhase attribute value is CAPTURING_PHASE. Either way, callback will be invoked if event's eventPhase attribute value is AT_TARGET.
When set to true, options's passive indicates that the callback will not cancel the event by invoking preventDefault(). This is used to enable performance optimizations described in ยง 2.8 Observing event listeners.
When set to true, options's once indicates that the callback will only be invoked once after which the event listener will be removed.
If an AbortSignal is passed for options's signal, then the event listener will be removed when signal is aborted.
The event listener is appended to target's event listener list and is not appended if it has the same type, callback, and capture.
Optionaloptions: boolean | AddEventListenerOptionsCallback method called when context is resolved.
Reference to the created Context Consumer Controller instance
Dispatches a synthetic event event to target and returns true if either event's cancelable attribute value is false or its preventDefault() method was not invoked, and false otherwise.
Get the appearance of this property.
A Promise with the reference to the Context Api Instance
Get the property editor UI element for this property.
The property editor UI element
Get the property editor manifest for this property.
The property editor manifest
Get the validation of this property.
Gets the current value of this property.
Notice this is not reactive, you should us the value observable for that.
Get the variant ID of this property.
An Observable to observe from.
Optionalcallback: ObserverCallback<SpecificT>Callback method called when data is changed.
OptionalcontrollerAlias: null | UmbControllerAliasDefine an explicit controller alias. If not defined then one will be generated based on the callback function. If null is parsed no controller alias will be given.
Reference to the created Observer Controller instance.
The API instance to be exposed.
Reference to the created Context Provider Controller instance
Removes the event listener in target's event listener list with the same type, callback, and options.
Optionaloptions: boolean | EventListenerOptionsSet the appearance of this property.
the appearance properties of this property
Set the property editor UI element for this property.
The property editor UI element
Set the property editor manifest for this property.
The property editor manifest
Set the validation of this property.
Object holding the Validation Properties.
Set the value of this property.
the whole value to be set
Set the variant ID of this property.
The property Variant ID, not necessary the same as the Property Dataset Context VariantId.
This base provides the necessary for a class to become a context-api controller.