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astro/packages/integrations/svelte/client-v5.js
2024-11-06 14:16:10 +00:00

60 lines
1.5 KiB
JavaScript

import { createRawSnippet, hydrate, mount, unmount } from 'svelte';
const existingApplications = new WeakMap();
export default (element) => {
return async (Component, props, slotted, { client }) => {
if (!element.hasAttribute('ssr')) return;
let children = undefined;
let $$slots = undefined;
let renderFns = {};
for (const [key, value] of Object.entries(slotted)) {
// Legacy slot support
$$slots ??= {};
if (key === 'default') {
$$slots.default = true;
children = createRawSnippet(() => ({
render: () => `<astro-slot>${value}</astro-slot>`,
}));
} else {
$$slots[key] = createRawSnippet(() => ({
render: () => `<astro-slot name="${key}">${value}</astro-slot>`,
}));
}
// @render support for Svelte ^5.0
if (key === 'default') {
renderFns.children = createRawSnippet(() => ({
render: () => `<astro-slot>${value}</astro-slot>`,
}));
} else {
renderFns[key] = createRawSnippet(() => ({
render: () => `<astro-slot name="${key}">${value}</astro-slot>`,
}));
}
}
const bootstrap = client !== 'only' ? hydrate : mount;
if (existingApplications.has(element)) {
existingApplications.get(element).$set({
...props,
children,
$$slots,
...renderFns,
});
} else {
const component = bootstrap(Component, {
target: element,
props: {
...props,
children,
$$slots,
...renderFns,
},
});
existingApplications.set(element, component);
element.addEventListener('astro:unmount', () => unmount(component), { once: true });
}
};
};