@patternplate/client/lib/app/actions/scroll-demo.js

Universal javascript client application for patternplate

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.type = exports.default = void 0;
var _default = scrollDemo;
exports.default = _default;
const type = "SCROLL_DEMO";
exports.type = type;
let loop;
let frame;

function scrollDemo(payload) {
  return (dispatch, getState) => {
    function run() {
      loop = global.requestAnimationFrame(() => {
        const state = getState();

        if (state.scrollDemoX.x !== frame.x) {
          dispatch({
            type: "SCROLL_DEMO_X",
            payload: frame.x
          });
        }

        if (state.scrollDemoY.y !== frame.y) {
          dispatch({
            type: "SCROLL_DEMO_Y",
            payload: frame.y
          });
        }

        run();
      });
    }

    if (!loop) {
      run();
    }

    frame = payload;
  };
}

scrollDemo.type = type;
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