@tanstack/vue-router/dist/source/Html.jsx

Modern and scalable routing for Vue applications

import * as Vue from 'vue';
import { Body } from './Body';
export const Html = Vue.defineComponent({
    name: 'Html',
    setup(_, { slots }) {
        const isServer = typeof window === 'undefined';
        const hydrated = Vue.ref(false);
        if (!isServer) {
            Vue.onMounted(() => {
                hydrated.value = true;
            });
        }
        return () => {
            if (isServer) {
                return Vue.h('html', {}, slots.default?.());
            }
            const children = slots.default?.() || [];
            const flatChildren = Array.isArray(children) ? children : [children];
            let bodyVnode = null;
            const headChildren = [];
            for (const child of flatChildren) {
                if (typeof child === 'object' && child !== null) {
                    const vnode = child;
                    if (vnode.type === 'head') {
                        if (vnode.children) {
                            if (Array.isArray(vnode.children)) {
                                for (const c of vnode.children) {
                                    if (typeof c === 'object' && c !== null && 'type' in c) {
                                        headChildren.push(c);
                                    }
                                }
                            }
                        }
                        continue;
                    }
                    if (vnode.type === Body) {
                        bodyVnode = vnode;
                        continue;
                    }
                    if (!bodyVnode) {
                        bodyVnode = vnode;
                    }
                }
            }
            const result = [];
            if (bodyVnode) {
                result.push(bodyVnode);
            }
            if (hydrated.value && headChildren.length > 0) {
                result.push(Vue.h(Vue.Teleport, { to: 'head' }, headChildren));
            }
            return result.length === 1 ? result[0] : Vue.h(Vue.Fragment, result);
        };
    },
});
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