blockly > browserEvents > conditionalBind

browserEvents.conditionalBind() function

Bind an event handler that can be ignored if it is not part of the active touch stream. Use this for events that either start or continue a multi-part gesture (e.g. mousedown or mousemove, which may be part of a drag or click).

Signature:

export declare function conditionalBind(node: EventTarget, name: string, thisObject: object | null, func: Function, opt_noCaptureIdentifier?: boolean, options?: AddEventListenerOptions): Data;

Parameters

Parameter	Type	Description
node	EventTarget	Node upon which to listen.
name	string	Event name to listen to (e.g. 'mousedown').
thisObject	object | null	The value of 'this' in the function.
func	Function	Function to call when event is triggered.
opt_noCaptureIdentifier	boolean	(Optional) True if triggering on this event should not block execution of other event handlers on this touch or other simultaneous touches. False by default.
options	AddEventListenerOptions	(Optional) An object with options controlling the behavior of the event listener. Passed through directly as the third argument to addEventListener.

Returns:

Data

Opaque data that can be passed to unbindEvent_.