wheel-indicator

Indicates when user makes swipe gesture on a trackpad or mouse wheel.

Installing

npm i -S wheel-indicator

or oldschool method:

<scriptsrc= "wheel-indicator.js"></script>

Usage

varWheelIndicator=require('wheel-indicator');// ← if you use build system

varindicator=newWheelIndicator({
elem:document.querySelector('.element'),
callback:function(e){
console.log(e.direction)// "up" or "down"
}
});

//The method call
indicator.getOption('preventMouse');// true

API

Options

Field	Type	Default value	Mutable (bysetOptions())	Description
elem	Object(dom node)	document	No	DOM node to listenwheelevent on.
callback	Function	-	Yes	The callback, which will be triggered on gesture. Gets for the first argument a nativewheelevent object, extended bydirectionproperty, taking value'up'or'down'.
preventMouse	Bool	true	Yes	Disables mouse wheel working. In other words appliespreventDefault()towheelevent.

Instance methods

Method	Description
turnOff()	Turns off callback triggering.
turnOn()	Turns on callback trigerring.
setOptions(options)	Sets the mutable options. The only argument must beObject.
getOption('option')	Returns option value. The only argument must beString.
destroy()	Removes event listener.