#import <DOM/Event.idl>

// https://drafts.csswg.org/css-transitions/#transitionevent
[Exposed=Window]
interface TransitionEvent : Event {
    constructor(CSSOMString type, optional TransitionEventInit transitionEventInitDict = {});
    readonly attribute CSSOMString propertyName;
    readonly attribute double elapsedTime;
    readonly attribute CSSOMString pseudoElement;
};

dictionary TransitionEventInit : EventInit {
    CSSOMString propertyName = "";
    double elapsedTime = 0.0;
    CSSOMString pseudoElement = "";
};