WheelEvent

A wheel event that provides access to the wheel event data.

This event occurs when a user rotates a wheel on a pointing device (such as a mouse).

Types

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Represents the type of the delta units.

Functions

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abstract fun button(): MouseEvent.Button
Returns a button pressed during events caused by pressing or releasing one or multiple buttons.
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abstract fun clickCount(): Int
Returns the count of consecutive clicks that happened in a short amount of time for mouse events, such as "click", "mouseDown, "mouseUp".
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abstract fun clientLocation(): Point
Returns the location of the mouse cursor in the local (DOM content) coordinate system at the time the event occurred.
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Returns an Optional that contains the event target that represents the element to which the event handler has been attached, otherwise an empty Optional.
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Returns the delta units type.
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abstract fun deltaX(): Double
Returns the amount of units to scroll horizontally.
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abstract fun deltaY(): Double
Returns the amount of units to scroll vertically.
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abstract fun isBubbles(): Boolean
Returns true if the event bubbles up through the DOM, otherwise false.
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abstract fun isCancelable(): Boolean
Returns true when the event can be canceled, and therefore prevented as if the event never happened.
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abstract fun isTrusted(): Boolean
Returns true if the event is trusted, and therefore was generated by a user action.
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abstract fun keyModifiers(): KeyModifiers
Returns the key modifiers that are applied to the event.
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abstract fun offsetLocation(): Point
Returns the location of the mouse cursor in the component's coordinate system at the time the event occurred.
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abstract fun pageLocation(): Point
Returns the location of the mouse cursor in the document coordinate system at the time the event occurred.
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abstract fun phase(): EventPhase
Returns the event phase.
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abstract fun preventDefault()
Informs the browser that if the event is not explicitly handled, its default action should not be performed.
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abstract fun screenLocation(): Point
Returns the location of the mouse cursor in the screen's coordinate system at the time the event occurred.
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abstract fun stopPropagation()
Informs the browser that the event should not propagate in the capturing and bubbling phases.
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abstract fun target(): Optional<EventTarget>
Returns an Optional that contains the element on which the event occurred if it exists, otherwise an empty Optional.
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abstract fun type(): EventType
Returns the event type.