@mui/x-internal-gestures/testing/utils/createProxy.js

The core engine of GestureEvents, a modern and robust multi-pointer gesture detection library for JavaScript.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.createProxy = void 0;
const createProxy = target => {
  const proxy = new Proxy(target, {
    get(obj, prop) {
      if (prop === 'setup') {
        return options => {
          const mode = Reflect.get(obj, 'pointerManager').mode;

          // Calling setup pretty much clears this proxy by creating a new instance
          // This new instance will NOT be a proxy.
          // @ts-expect-error, constructor is a function...
          return new obj.constructor(mode).setup(options);
        };
      }
      const value = Reflect.get(obj, prop);

      // If the property is not a function, we return it as is.
      if (typeof value !== 'function') {
        return value;
      }

      // If we are trying to call a method on the proxy,
      // we ensure that we run the method on a new instance of the gesture.
      // This is useful for tests where we want to ensure no pointers are left hanging in the pointer manager.
      return async (...args) => {
        const mode = Reflect.get(obj, 'pointerManager').mode;
        // @ts-expect-error, constructor is a function...
        return new obj.constructor(mode)[prop](...args);
      };
    }
  });
  return proxy;
};
exports.createProxy = createProxy;