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UIEvent

files/en-us/web/api/uievent/index.md

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{{APIRef("UI Events")}}

The UIEvent interface represents simple user interface events. It is part of the UI Events API, which includes various event types and interfaces related to user interactions.

UIEvent derives from {{domxref("Event")}}. Although the {{domxref("UIEvent.initUIEvent()")}} method is kept for backward compatibility, you should create a UIEvent object using the {{domxref("UIEvent.UIEvent", "UIEvent()")}} constructor.

Several interfaces are direct or indirect descendants of this one: {{domxref("MouseEvent")}}, {{domxref("TouchEvent")}}, {{domxref("FocusEvent")}}, {{domxref("KeyboardEvent")}}, {{domxref("WheelEvent")}}, {{domxref("InputEvent")}}, and {{domxref("CompositionEvent")}}.

{{InheritanceDiagram}}

Constructors

  • {{domxref("UIEvent.UIEvent()", "UIEvent()")}}
    • : Creates a UIEvent object.

Instance properties

This interface also inherits properties of its parent, {{domxref("Event")}}.

  • {{domxref("UIEvent.detail")}} {{ReadOnlyInline}}
    • : Returns a long with details about the event, depending on the event type.
  • {{domxref("UIEvent.sourceCapabilities")}} {{Experimental_Inline}} {{ReadOnlyInline}}
    • : Returns an instance of the InputDeviceCapabilities interface, which provides information about the physical device responsible for generating a touch event.
  • {{domxref("UIEvent.view")}} {{ReadOnlyInline}}
    • : Returns a {{glossary("WindowProxy")}} that contains the view that generated the event.
  • {{domxref("UIEvent.which")}} {{Deprecated_Inline}} {{ReadOnlyInline}}
    • : Returns the numeric keyCode of the key pressed, or the character code (charCode) for an alphanumeric key pressed.

Instance methods

This interface also inherits methods of its parent, {{domxref("Event")}}.

  • {{domxref("UIEvent.initUIEvent()")}} {{Deprecated_Inline}}
    • : Initializes a UIEvent object. If the event has already been dispatched, this method does nothing.

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

See also