@zohodesk/components/lib/Responsive/windowResizeObserver.js

In this Package, we Provide Some Basic Components to Build Web App

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.windowResizeObserver = void 0;

var _utils = require("./utils/");

var windowResizeObserver = function () {
  var listeners = [];
  var size = {
    height: 0,
    width: 0
  };
  var breackPoint = null;

  function handleResize() {
    var newSize = {
      height: window.innerHeight,
      width: window.innerWidth
    };
    size = newSize;
    var newBreackPoint = (0, _utils.defaultMatcher)(size);

    if (newBreackPoint !== breackPoint) {
      breackPoint = newBreackPoint;
      listeners.forEach(function (listener) {
        return listener(newBreackPoint);
      });
    }
  }

  function addResizeListener() {
    window.addEventListener('resize', handleResize);
    handleResize();
  }

  function removeResizeListener() {
    window.removeEventListener('resize', handleResize);
  }

  return {
    observe: function observe(listener) {
      listeners.push(listener);
      listener.length === 1 && addResizeListener();
    },
    getBreackPoint: function getBreackPoint() {
      return breackPoint;
    },
    getSize: function getSize() {
      return size;
    },
    unobserve: function unobserve(listener) {
      listeners = listeners.filter(function (l) {
        return l !== listener;
      });
      listener.length === 0 && removeResizeListener();
    }
  };
}();

exports.windowResizeObserver = windowResizeObserver;