@storybook/angular
Version:
Storybook for Angular: Develop Angular components in isolation with hot reloading.
87 lines (86 loc) • 3.46 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
return ar;
};
return ownKeys(o);
};
return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__setModuleDefault(result, mod);
return result;
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.queueBootstrapping = void 0;
const queue = [];
let isProcessing = false;
/**
* Reset compiled components because we often want to compile the same component with more than one
* NgModule.
*/
const resetCompiledComponents = async () => {
try {
// Clear global Angular component cache in order to be able to re-render the same component across multiple stories
//
// References:
// https://github.com/angular/angular-cli/blob/master/packages/angular_devkit/build_angular/src/webpack/plugins/hmr/hmr-accept.ts#L50
// https://github.com/angular/angular/blob/2ebe2bcb2fe19bf672316b05f15241fd7fd40803/packages/core/src/render3/jit/module.ts#L377-L384
const { ɵresetCompiledComponents } = await Promise.resolve().then(() => __importStar(require('@angular/core')));
ɵresetCompiledComponents();
}
catch (e) {
/** Noop catch This means angular removed or modified ɵresetCompiledComponents */
}
};
/**
* Queue bootstrapping, so that only one application can be bootstrapped at a time.
*
* Bootstrapping multiple applications at once can cause Angular to throw an error that a component
* is declared in multiple modules. This avoids two stories confusing the Angular compiler, by
* bootstrapping more that one application at a time.
*
* @param fn Callback that should complete the bootstrap process
* @returns ApplicationRef from the completed bootstrap process
*/
const queueBootstrapping = (fn) => {
return new Promise((resolve, reject) => {
queue.push(() => fn().then(resolve).catch(reject));
if (!isProcessing) {
processQueue();
}
});
};
exports.queueBootstrapping = queueBootstrapping;
const processQueue = async () => {
isProcessing = true;
while (queue.length > 0) {
const bootstrappingFn = queue.shift();
if (bootstrappingFn) {
await bootstrappingFn();
await resetCompiledComponents();
}
}
isProcessing = false;
};