[PrimaryGlobal]
interface Window {
};

[TreatNonObjectAsNull]
callback EventHandlerNonNull = any (Event event);
typedef EventHandlerNonNull? EventHandler;

[NoInterfaceObject]
interface GlobalEventHandlers {
};
Window implements GlobalEventHandlers;

interface Navigator {
};

interface Element {
};

interface HTMLElement : Element {
};
HTMLElement implements GlobalEventHandlers;

interface Document {
};
Document implements GlobalEventHandlers;

interface MouseEvent {
};

dictionary PointerEventInit : MouseEventInit {
    long      pointerId = 0;
    double    width = 1;
    double    height = 1;
    float     pressure = 0;
    float     tangentialPressure = 0;
    long      tiltX = 0;
    long      tiltY = 0;
    long      twist = 0;
    DOMString pointerType = "";
    boolean   isPrimary = false;
};

[Constructor(DOMString type, optional PointerEventInit eventInitDict)]
interface PointerEvent : MouseEvent {
    readonly attribute long      pointerId;
    readonly attribute double    width;
    readonly attribute double    height;
    readonly attribute float     pressure;
    readonly attribute float     tangentialPressure;
    readonly attribute long      tiltX;
    readonly attribute long      tiltY;
    readonly attribute long      twist;
    readonly attribute DOMString pointerType;
    readonly attribute boolean   isPrimary;
};

partial interface Element {
    void    setPointerCapture(long pointerId);
    void    releasePointerCapture(long pointerId);
    boolean hasPointerCapture(long pointerId);
};

partial interface GlobalEventHandlers {
    attribute EventHandler ongotpointercapture;
    attribute EventHandler onlostpointercapture;
    attribute EventHandler onpointerdown;
    attribute EventHandler onpointermove;
    attribute EventHandler onpointerup;
    attribute EventHandler onpointercancel;
    attribute EventHandler onpointerover;
    attribute EventHandler onpointerout;
    attribute EventHandler onpointerenter;
    attribute EventHandler onpointerleave;
};

partial interface Navigator {
    readonly attribute long maxTouchPoints;
};