next
Version:
The React Framework
58 lines (56 loc) • 1.6 kB
JavaScript
/*
* Singleton store to track whether the app is currently being rendered
* Used by the dev tools indicator to show render status
*/ "use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
0 && (module.exports = {
devRenderIndicator: null,
useIsDevRendering: null
});
function _export(target, all) {
for(var name in all)Object.defineProperty(target, name, {
enumerable: true,
get: all[name]
});
}
_export(exports, {
devRenderIndicator: function() {
return devRenderIndicator;
},
useIsDevRendering: function() {
return useIsDevRendering;
}
});
const _react = require("react");
let isVisible = false;
let listeners = [];
const subscribe = (listener)=>{
listeners.push(listener);
return ()=>{
listeners = listeners.filter((l)=>l !== listener);
};
};
const getSnapshot = ()=>isVisible;
const show = ()=>{
isVisible = true;
listeners.forEach((listener)=>listener());
};
const hide = ()=>{
isVisible = false;
listeners.forEach((listener)=>listener());
};
function useIsDevRendering() {
return (0, _react.useSyncExternalStore)(subscribe, getSnapshot);
}
const devRenderIndicator = {
show,
hide
};
if ((typeof exports.default === 'function' || (typeof exports.default === 'object' && exports.default !== null)) && typeof exports.default.__esModule === 'undefined') {
Object.defineProperty(exports.default, '__esModule', { value: true });
Object.assign(exports.default, exports);
module.exports = exports.default;
}
//# sourceMappingURL=dev-render-indicator.js.map