HandlerAsJSFunction

Type

handler

Summary

Wrap a LiveCode Builder handler within a JavaScript function, suitable for passing as an event handler.

Syntax

HandlerAsJSFunction(<pHandler>)

Description

Use HandlerAsJSFunction to convert a handler reference to a JavaScript function object reference.

Parameters

Name	Type	Description
pHandler		The handler to wrap

Examples

variable mButton as JSObject
variable mOnClickHandler as JSObject

private handler OnJSClick(pEvent as JSObject) returns nothing
	SetLabel("Clicked!")
end handler

private handler SetJSEventHandler(in pElement as JSObject, in pEvent as String, in pHandler as JSObject)
	EvalJavaScriptWithArguments("arguments[0].addEventListener(arguments[1], arguments[2]);", [pElement, pEvent, pHandler])
end handler

private handler SetupEventHandler()
	put HandlerAsJSFunction(OnJSClick) into mOnClickHandler
	SetJSEventHandler(mButton, "click", mOnClickHandler)
end handler

Value

Name	Type	Description
return		A JavaScript function object, wrapping the handler