Class: Signal

Members

active

If Signal is active and should broadcast events.

<p><strong>IMPORTANT:</strong> Setting this property during a dispatch will only affect the next dispatch, if you want to stop the propagation of a signal use halt() instead.</p>

Properties:

Name	Type	Description
active	boolean

Default Value:

• true

Source:

• core/Signal.js, line 61

memorize

If Signal should keep record of previously dispatched parameters and automatically execute listener during add()/addOnce() if Signal was already dispatched before.

Properties:

Name	Type	Description
memorize	boolean

Source:

• core/Signal.js, line 47

Methods

add(listener, listenerContext, priority) → {Phaser.SignalBinding}

Add a listener to the signal.

Parameters:

Name	Type	Argument	Description
listener	function		Signal handler function.
listenerContext	object	<optional>	Context on which listener will be executed (object that should represent the this variable inside listener function).
priority	number	<optional>	The priority level of the event listener. Listeners with higher priority will be executed before listeners with lower priority. Listeners with same priority level will be executed at the same order as they were added. (default = 0).

Source:

• core/Signal.js, line 148

Returns:

An Object representing the binding between the Signal and listener.

Type

Phaser.SignalBinding

addOnce(listener, listenerContext, priority) → {Phaser.SignalBinding}

Add listener to the signal that should be removed after first execution (will be executed only once).

Parameters:

Name	Type	Argument	Description
listener	function		Signal handler function.
listenerContext	object	<optional>	Context on which listener will be executed (object that should represent the this variable inside listener function).
priority	number	<optional>	The priority level of the event listener. Listeners with higher priority will be executed before listeners with lower priority. Listeners with same priority level will be executed at the same order as they were added. (default = 0)

Source:

• core/Signal.js, line 162

Returns:

An Object representing the binding between the Signal and listener.

Type

Phaser.SignalBinding

dispatch(params)

Dispatch/Broadcast Signal to all listeners added to the queue.

Parameters:

Name	Type	Argument	Description
params	any	<optional>	Parameters that should be passed to each handler.

Source:

• core/Signal.js, line 234

dispatch()

Properties:

Name	Type	Description
dispatch	Description	Description.

Source:

• core/Signal.js, line 33

dispose()

Remove all bindings from signal and destroy any reference to external objects (destroy Signal object).

<p><strong>IMPORTANT:</strong> calling any method on the signal instance after calling dispose will throw errors.</p>

Source:

• core/Signal.js, line 276

forget()

Forget memorized arguments.

Source:

• core/Signal.js, line 266

See:

• Signal.memorize

getNumListeners() → {number}

Gets the total number of listeneres attached to ths Signal.

Source:

• core/Signal.js, line 213

Returns:

Number of listeners attached to the Signal.

Type

number

halt()

Stop propagation of the event, blocking the dispatch to next listeners on the queue.

<p><strong>IMPORTANT:</strong> should be called only during signal dispatch, calling it before/after dispatch won't affect signal broadcast.</p>

Source:

• core/Signal.js, line 223

See:

• Signal.prototype.disable

has(listener, context) → {boolean}

Check if listener was attached to Signal.

Parameters:

Name	Type	Argument	Description
listener	Function		Signal handler function.
context	Object	<optional>	Context on which listener will be executed (object that should represent the this variable inside listener function).

Source:

• core/Signal.js, line 136

Returns:

If Signal has the specified listener.

Type

boolean

remove(listener, context) → {function}

Remove a single listener from the dispatch queue.

Parameters:

Name	Type	Argument	Description
listener	function		Handler function that should be removed.
context	object	<optional>	Execution context (since you can add the same handler multiple times if executing in a different context).

Source:

• core/Signal.js, line 176

Returns:

Listener handler function.

Type

function

removeAll()

Remove all listeners from the Signal.

Source:

• core/Signal.js, line 200

toString() → {string}

Source:

• core/Signal.js, line 288

Returns:

String representation of the object.

Type

string