Class: DispatcherImpl
Defined in: packages/core/src/event/DispatcherImpl.ts:26
Default implementation of the Dispatcher interface.
Extends
Constructors
new DispatcherImpl()
new DispatcherImpl():
DispatcherImpl
Defined in: packages/core/src/event/DispatcherImpl.ts:39
Initializes the dispatcher.
Returns
Overrides
Properties
_eventListeners
protected_eventListeners:Map<string,Map<DispatcherListener<any>,Set<unknown>>>
Defined in: packages/core/src/event/DispatcherImpl.ts:27
_eventListenersAll
protected_eventListenersAll:Map<DispatcherListenerAll<any>,Set<unknown>>
Defined in: packages/core/src/event/DispatcherImpl.ts:32
$dependencies
static$dependencies:Dependencies=[]
Defined in: packages/core/src/event/DispatcherImpl.ts:34
Methods
_createNewEvent()
_createNewEvent(
event):void
Defined in: packages/core/src/event/DispatcherImpl.ts:210
Create new Map storage of listeners for the specified event.
Parameters
event
string
The name of the event.
Returns
void
_createNewListener()
_createNewListener<
L>(event,listener):void
Defined in: packages/core/src/event/DispatcherImpl.ts:221
Create new Set storage of scopes for the specified event and listener.
Type Parameters
• L extends DispatcherListener<any>
Parameters
event
string
The name of the event.
listener
L
The event listener.
Returns
void
_getListenersOf()
_getListenersOf(
event):Readonly<Map<DispatcherListener<any>,Set<unknown>>>
Defined in: packages/core/src/event/DispatcherImpl.ts:266
Retrieves the map of event listeners to scopes they are bound to.
Parameters
event
string
The name of the event.
Returns
Readonly<Map<DispatcherListener<any>, Set<unknown>>>
A map of event listeners to the scopes in which they should be executed. The returned map is an unmodifiable empty map if no listeners are registered for the event.
_getScopesOf()
_getScopesOf<
L>(event,listener):Readonly<Set<unknown>>
Defined in: packages/core/src/event/DispatcherImpl.ts:244
Retrieves the scopes in which the specified event listener should be executed for the specified event.
Type Parameters
• L extends DispatcherListener<any>
Parameters
event
string
The name of the event.
listener
L
The event listener.
Returns
Readonly<Set<unknown>>
The scopes in which the specified listeners should be executed in case of the specified event. The returned set is an unmodifiable empty set if no listeners are registered for the event.
clear()
clear():
this
Defined in: packages/core/src/event/DispatcherImpl.ts:54
Deregisters all event listeners currently registered with this dispatcher.
Returns
this
Overrides
fire()
fire<
E>(event,data):this
Defined in: packages/core/src/event/DispatcherImpl.ts:184
Fires a new event of the specified name, carrying the provided data.
The method will synchronously execute all event listeners registered for the specified event, passing the provided data to them as the first argument.
It will also execute all event listeners registered to listen to all events.
Note that this method does not prevent the event listeners to modify the data in any way. The order in which the event listeners will be executed is unspecified and should not be relied upon.
Type Parameters
• E extends string
Parameters
event
E
The name of the event to fire.
data
any
The data to pass to the event listeners.
Returns
this
This dispatcher.
Overrides
listen()
listen(
event,listener,scope?):this
Defined in: packages/core/src/event/DispatcherImpl.ts:63
Registers the provided event listener to be executed when the specified event is fired on this dispatcher.
When the specified event is fired, the event listener will be executed with the data passed with the event as the first argument.
The order in which the event listeners will be executed is unspecified and should not be relied upon. Registering the same listener for the same event and with the same scope multiple times has no effect.
Parameters
event
string
The name of the event to listen for.
listener
DispatcherListener<any>
The event listener to register.
scope?
unknown
The object to which the this keyword
will be bound in the event listener.
Returns
this
This dispatcher.
Overrides
listenAll()
listenAll(
listener,scope?):DispatcherImpl
Defined in: packages/core/src/event/DispatcherImpl.ts:94
Registers the provided event listener to be executed when any event is fired on this dispatcher.
When any event is fired, the event listener will be executed with the data passed with the event as the first argument.
The order in which the event listeners will be executed is unspecified and should not be relied upon. Registering the same listener with the same scope multiple times has no effect.
Parameters
listener
DispatcherListenerAll<any>
The event listener to register.
scope?
unknown
The object to which the this keyword
will be bound in the event listener.
Returns
This dispatcher.
Overrides
unlisten()
unlisten(
event,listener,scope?):this
Defined in: packages/core/src/event/DispatcherImpl.ts:117
Deregisters the provided event listener, so it will no longer be executed with the specified scope when the specified event is fired.
Parameters
event
string
The name of the event for which the listener should be deregistered.
listener
DispatcherListener<any>
The event listener to deregister.
scope?
unknown
The object to which the this keyword
would be bound in the event listener.
Returns
this
This dispatcher.
Overrides
unlistenAll()
unlistenAll(
listener,scope?):DispatcherImpl
Defined in: packages/core/src/event/DispatcherImpl.ts:154
Deregisters the provided event listener, so it will no longer be executed when any event is fired.
Parameters
listener
DispatcherListenerAll<any>
The event listener function to deregister for all events.
scope?
unknown
Optional. The object to which the this keyword would be bound in the event listener.
Returns
This dispatcher instance.