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import { setup } from 'virtual:@astrojs/vue/app';
import { Suspense, createApp, createSSRApp, h } from 'vue';
import StaticHtml from './static-html.js';
// keep track of already initialized apps, so we don't hydrate again for view transitions
let appMap = new WeakMap();
export default (element) =>
async (Component, props, slotted, { client }) => {
if (!element.hasAttribute('ssr')) return;
// Expose name on host component for Vue devtools
const name = Component.name ? `${Component.name} Host` : undefined;
const slots = {};
for (const [key, value] of Object.entries(slotted)) {
slots[key] = () => h(StaticHtml, { value, name: key === 'default' ? undefined : key });
}
const isHydrate = client !== 'only';
const bootstrap = isHydrate ? createSSRApp : createApp;
// keep a reference to the app, props and slots so we can update a running instance later
let appInstance = appMap.get(element);
if (!appInstance) {
appInstance = {
props,
slots,
};
const app = bootstrap({
name,
render() {
let content = h(Component, appInstance.props, appInstance.slots);
appInstance.component = this;
// related to https://github.com/withastro/astro/issues/6549
// if the component is async, wrap it in a Suspense component
if (isAsync(Component.setup)) {
content = h(Suspense, null, content);
}
return content;
},
});
app.config.idPrefix = element.getAttribute('prefix');
await setup(app);
app.mount(element, isHydrate);
appMap.set(element, appInstance);
element.addEventListener('astro:unmount', () => app.unmount(), { once: true });
} else {
appInstance.props = props;
appInstance.slots = slots;
appInstance.component.$forceUpdate();
}
};
function isAsync(fn) {
const constructor = fn?.constructor;
return constructor && constructor.name === 'AsyncFunction';
}
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