blockly > utils > browserEvents > conditionalBind
utils.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): 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. |
Returns:
Opaque data that can be passed to unbindEvent_.