little-state-machine/dist/little-state-machine.umd.js

State management made super simple

!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?t(exports,require("react")):"function"==typeof define&&define.amd?define(["exports","react"],t):t((e||self).littleStateMachine={},e.react)}(this,function(e,t){function r(e){if(e&&e.__esModule)return e;var t=Object.create(null);return e&&Object.keys(e).forEach(function(r){if("default"!==r){var n=Object.getOwnPropertyDescriptor(e,r);Object.defineProperty(t,r,n.get?n:{enumerable:!0,get:function(){return e[r]}})}}),t.default=e,t}var n=/*#__PURE__*/r(t);function o(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=Array(t);r<t;r++)n[r]=e[r];return n}function a(){return a=Object.assign?Object.assign.bind():function(e){for(var t=1;t<arguments.length;t++){var r=arguments[t];for(var n in r)({}).hasOwnProperty.call(r,n)&&(e[n]=r[n])}return e},a.apply(null,arguments)}var i="action",s=function(){var e={name:"__LSM__",middleWares:[],persist:i},t={},r=new Set;try{e.storageType="undefined"!=typeof sessionStorage?window.sessionStorage:void 0}catch(e){}return{subscribe:function(e){return r.add(e),function(){return r.delete(e)}},updateStore:function(r){try{t=e.storageType&&JSON.parse(e.storageType.getItem(e.name)||"")||r}catch(e){t=r}},saveStore:function(){e.storageType&&e.storageType.setItem(e.name,JSON.stringify(t))},get state(){return t},getState:function(){return t},setState:function(e){t="function"==typeof e?e(t):t;for(var n,a=function(e){var t="undefined"!=typeof Symbol&&e[Symbol.iterator]||e["@@iterator"];if(t)return(t=t.call(e)).next.bind(t);if(Array.isArray(e)||(t=function(e,t){if(e){if("string"==typeof e)return o(e,t);var r={}.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?o(e,t):void 0}}(e))){t&&(e=t);var r=0;return function(){return r>=e.length?{done:!0}:{done:!1,value:e[r++]}}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}(r);!(n=a()).done;)(0,n.value)()},set state(e){t=e},get options(){return e},set options(t){e=t}}}();e.createStore=function(e,t){t&&(s.options=a({},s.options,t)),s.updateStore(e)},e.useStateMachine=function(e){var t=void 0===e?{}:e,r=t.selector,o=n.useRef(Object.entries(t.actions||{}).reduce(function(e,t){var r,n,o;return Object.assign({},e,((r={})[t[0]]=(n=s.setState,o=t[1],function(e,t){s.state=o(s.state,e),s.options.middleWares&&(s.state=s.options.middleWares.reduce(function(t,r){return r(t,o.name,e)||t},s.state)),(!t||!t.skipRender)&&n(s.state),s.options.persist===i&&s.saveStore()}),r))},{})),a=n.useRef(r),u=n.useRef(void 0),c=n.useCallback(function(){var e=s.getState();if(!a.current)return e;var t=a.current(e);return JSON.stringify(u.current)!==JSON.stringify(t)&&(u.current=t),u.current},[]);return n.useSyncExternalStore(s.subscribe,c,function(){}),{actions:o.current,state:s.state,getState:n.useCallback(function(){return s.state},[])}}});
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