lib/utils/types.js

// @flow

// eslint-disable-next-line no-use-before-define
export type DraggableEventHandler = (e: MouseEvent, data: DraggableData) => void | false;

export type DraggableData = {
  node: HTMLElement,
  x: number, y: number,
  deltaX: number, deltaY: number,
  lastX: number, lastY: number
};

export type Bounds = {
  left?: number, top?: number, right?: number, bottom?: number
};
export type ControlPosition = {x: number, y: number};
export type PositionOffsetControlPosition = {x: number|string, y: number|string};
export type EventHandler<T> = (e: T) => void | false;

// Missing in Flow
export class SVGElement extends HTMLElement {
}

// Missing targetTouches
export class TouchEvent2 extends TouchEvent {
  changedTouches: TouchList;
  targetTouches: TouchList;
}

export type MouseTouchEvent = MouseEvent & TouchEvent2;