preact-context/dist/context.min.js

React's new Context Api for preact

!function(n,t){"object"==typeof exports&&"undefined"!=typeof module?t(exports,require("preact")):"function"==typeof define&&define.amd?define(["exports","preact"],t):t((n=n||self).preactContext={},n.preact)}(this,function(n,t){"use strict";var i=function(n,t){return(i=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(n,t){n.__proto__=t}||function(n,t){for(var i in t)t.hasOwnProperty(i)&&(n[i]=t[i])})(n,t)};function r(n,t){function r(){this.constructor=n}i(n,t),n.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)}var e={register:function(n){console.warn("Consumer used without a Provider")},unregister:function(n){},val:function(n){}};function u(n){var t=n.children;return{child:1===t.length?t[0]:null,children:t}}function o(n){return u(n).child||"render"in n&&n.render}var c=1073741823,f=function(){return c},s=0;function a(n,i){var a="_preactContextProvider-"+s++;return{Provider:function(n){function e(t){var r=n.call(this,t)||this;return r.t=function(n,t){var i=[],r=n,e=function(n){return 0|t(r,n)};return{register:function(n){i.push(n),n(r,e(r))},unregister:function(n){i=i.filter(function(t){return t!==n})},val:function(n){if(void 0===n||n==r)return r;var t=e(n);return r=n,i.forEach(function(i){return i(n,t)}),r}}}(t.value,i||f),r}return r(e,n),e.prototype.getChildContext=function(){var n;return(n={})[a]=this.t,n},e.prototype.componentDidUpdate=function(){this.t.val(this.props.value)},e.prototype.render=function(){var n=u(this.props),i=n.child,r=n.children;return i||t.h("span",null,r)},e}(t.Component),Consumer:function(t){function i(i,r){var e=t.call(this,i,r)||this;return e.i=function(n,t){var i=e.props.unstable_observedBits,r=void 0===i||null===i?c:i;0!=((r|=0)&t)&&e.setState({value:n})},e.state={value:e.u().val()||n},e}return r(i,t),i.prototype.componentDidMount=function(){this.u().register(this.i)},i.prototype.shouldComponentUpdate=function(n,t){return this.state.value!==t.value||o(this.props)!==o(n)},i.prototype.componentWillUnmount=function(){this.u().unregister(this.i)},i.prototype.componentDidUpdate=function(n,t,i){var r=i[a];r!==this.context[a]&&((r||e).unregister(this.i),this.componentDidMount())},i.prototype.render=function(){var n="render"in this.props&&this.props.render,t=o(this.props);if(n&&n!==t&&console.warn("Both children and a render function are defined. Children will be used"),"function"==typeof t)return t(this.state.value);console.warn("Consumer is expecting a function as one and only child but didn't find any")},i.prototype.u=function(){return this.context[a]||e},i}(t.Component)}}var h=a;n.default=a,n.createContext=h,Object.defineProperty(n,"__esModule",{value:!0})});