"use strict";
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);

// src/pointer-event.ts
var pointer_event_exports = {};
__export(pointer_event_exports, {
  addPointerEvent: () => addPointerEvent,
  extractEventInfo: () => extractEventInfo,
  getPointerEventName: () => getPointerEventName,
  getViewportPointFromEvent: () => getViewportPointFromEvent,
  isMouseEvent: () => isMouseEvent,
  isMultiTouchEvent: () => isMultiTouchEvent,
  isTouchEvent: () => isTouchEvent,
  wrapPointerEventHandler: () => wrapPointerEventHandler
});
module.exports = __toCommonJS(pointer_event_exports);

// src/dom.ts
function getEventWindow(event) {
  var _a;
  return (_a = event.view) != null ? _a : window;
}
function canUseDOM() {
  return !!(typeof window !== "undefined" && window.document && window.document.createElement);
}
var isBrowser = /* @__PURE__ */ canUseDOM();
function addDomEvent(target, eventName, handler, options) {
  target.addEventListener(eventName, handler, options);
  return () => {
    target.removeEventListener(eventName, handler, options);
  };
}

// src/pointer-event.ts
function isMouseEvent(event) {
  const win = getEventWindow(event);
  if (typeof win.PointerEvent !== "undefined" && event instanceof win.PointerEvent) {
    return !!(event.pointerType === "mouse");
  }
  return event instanceof win.MouseEvent;
}
function isTouchEvent(event) {
  const hasTouches = !!event.touches;
  return hasTouches;
}
function filterPrimaryPointer(eventHandler) {
  return (event) => {
    const win = getEventWindow(event);
    const isMouseEvent2 = event instanceof win.MouseEvent;
    const isPrimaryPointer = !isMouseEvent2 || isMouseEvent2 && event.button === 0;
    if (isPrimaryPointer) {
      eventHandler(event);
    }
  };
}
var defaultPagePoint = { pageX: 0, pageY: 0 };
function pointFromTouch(e, pointType = "page") {
  const primaryTouch = e.touches[0] || e.changedTouches[0];
  const point = primaryTouch || defaultPagePoint;
  return {
    x: point[`${pointType}X`],
    y: point[`${pointType}Y`]
  };
}
function pointFromMouse(point, pointType = "page") {
  return {
    x: point[`${pointType}X`],
    y: point[`${pointType}Y`]
  };
}
function extractEventInfo(event, pointType = "page") {
  return {
    point: isTouchEvent(event) ? pointFromTouch(event, pointType) : pointFromMouse(event, pointType)
  };
}
function getViewportPointFromEvent(event) {
  return extractEventInfo(event, "client");
}
var wrapPointerEventHandler = (handler, shouldFilterPrimaryPointer = false) => {
  const listener = (event) => handler(event, extractEventInfo(event));
  return shouldFilterPrimaryPointer ? filterPrimaryPointer(listener) : listener;
};
var supportsPointerEvents = () => isBrowser && window.onpointerdown === null;
var supportsTouchEvents = () => isBrowser && window.ontouchstart === null;
var supportsMouseEvents = () => isBrowser && window.onmousedown === null;
var mouseEventNames = {
  pointerdown: "mousedown",
  pointermove: "mousemove",
  pointerup: "mouseup",
  pointercancel: "mousecancel",
  pointerover: "mouseover",
  pointerout: "mouseout",
  pointerenter: "mouseenter",
  pointerleave: "mouseleave"
};
var touchEventNames = {
  pointerdown: "touchstart",
  pointermove: "touchmove",
  pointerup: "touchend",
  pointercancel: "touchcancel"
};
function getPointerEventName(name) {
  if (supportsPointerEvents()) {
    return name;
  }
  if (supportsTouchEvents()) {
    return touchEventNames[name];
  }
  if (supportsMouseEvents()) {
    return mouseEventNames[name];
  }
  return name;
}
function addPointerEvent(target, eventName, handler, options) {
  return addDomEvent(
    target,
    getPointerEventName(eventName),
    wrapPointerEventHandler(handler, eventName === "pointerdown"),
    options
  );
}
function isMultiTouchEvent(event) {
  return isTouchEvent(event) && event.touches.length > 1;
}
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
  addPointerEvent,
  extractEventInfo,
  getPointerEventName,
  getViewportPointFromEvent,
  isMouseEvent,
  isMultiTouchEvent,
  isTouchEvent,
  wrapPointerEventHandler
});