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2026-05-02 20:07:02 +02:00
parent ce8672e283
commit 34dc9aec52
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+'use client';
+import { jsx as _jsx } from "react/jsx-runtime";
+import React, { useContext } from 'react';
+import Effect from './side-effect';
+import { HeadManagerContext } from './head-manager-context.shared-runtime';
+import { warnOnce } from './utils/warn-once';
+export function defaultHead() {
+    const head = [
+        /*#__PURE__*/ _jsx("meta", {
+            charSet: "utf-8"
+        }, "charset"),
+        /*#__PURE__*/ _jsx("meta", {
+            name: "viewport",
+            content: "width=device-width"
+        }, "viewport")
+    ];
+    return head;
+}
+function onlyReactElement(list, child) {
+    // React children can be "string" or "number" in this case we ignore them for backwards compat
+    if (typeof child === 'string' || typeof child === 'number') {
+        return list;
+    }
+    // Adds support for React.Fragment
+    if (child.type === React.Fragment) {
+        return list.concat(// @ts-expect-error @types/react does not remove fragments but this could also return ReactPortal[]
+        React.Children.toArray(child.props.children).reduce(// @ts-expect-error @types/react does not remove fragments but this could also return ReactPortal[]
+        (fragmentList, fragmentChild)=>{
+            if (typeof fragmentChild === 'string' || typeof fragmentChild === 'number') {
+                return fragmentList;
+            }
+            return fragmentList.concat(fragmentChild);
+        }, []));
+    }
+    return list.concat(child);
+}
+const METATYPES = [
+    'name',
+    'httpEquiv',
+    'charSet',
+    'itemProp'
+];
+/*
+ returns a function for filtering head child elements
+ which shouldn't be duplicated, like <title/>
+ Also adds support for deduplicated `key` properties
+*/ function unique() {
+    const keys = new Set();
+    const tags = new Set();
+    const metaTypes = new Set();
+    const metaCategories = {};
+    return (h)=>{
+        let isUnique = true;
+        let hasKey = false;
+        if (h.key && typeof h.key !== 'number' && h.key.indexOf('$') > 0) {
+            hasKey = true;
+            const key = h.key.slice(h.key.indexOf('$') + 1);
+            if (keys.has(key)) {
+                isUnique = false;
+            } else {
+                keys.add(key);
+            }
+        }
+        // eslint-disable-next-line default-case
+        switch(h.type){
+            case 'title':
+            case 'base':
+                if (tags.has(h.type)) {
+                    isUnique = false;
+                } else {
+                    tags.add(h.type);
+                }
+                break;
+            case 'meta':
+                for(let i = 0, len = METATYPES.length; i < len; i++){
+                    const metatype = METATYPES[i];
+                    if (!h.props.hasOwnProperty(metatype)) continue;
+                    if (metatype === 'charSet') {
+                        if (metaTypes.has(metatype)) {
+                            isUnique = false;
+                        } else {
+                            metaTypes.add(metatype);
+                        }
+                    } else {
+                        const category = h.props[metatype];
+                        const categories = metaCategories[metatype] || new Set();
+                        if ((metatype !== 'name' || !hasKey) && categories.has(category)) {
+                            isUnique = false;
+                        } else {
+                            categories.add(category);
+                            metaCategories[metatype] = categories;
+                        }
+                    }
+                }
+                break;
+        }
+        return isUnique;
+    };
+}
+/**
+ *
+ * @param headChildrenElements List of children of <Head>
+ */ function reduceComponents(headChildrenElements) {
+    return headChildrenElements.reduce(onlyReactElement, []).reverse().concat(defaultHead().reverse()).filter(unique()).reverse().map((c, i)=>{
+        const key = c.key || i;
+        if (process.env.NODE_ENV === 'development') {
+            // omit JSON-LD structured data snippets from the warning
+            if (c.type === 'script' && c.props['type'] !== 'application/ld+json') {
+                const srcMessage = c.props['src'] ? `<script> tag with src="${c.props['src']}"` : `inline <script>`;
+                warnOnce(`Do not add <script> tags using next/head (see ${srcMessage}). Use next/script instead. \nSee more info here: https://nextjs.org/docs/messages/no-script-tags-in-head-component`);
+            } else if (c.type === 'link' && c.props['rel'] === 'stylesheet') {
+                warnOnce(`Do not add stylesheets using next/head (see <link rel="stylesheet"> tag with href="${c.props['href']}"). Use Document instead. \nSee more info here: https://nextjs.org/docs/messages/no-stylesheets-in-head-component`);
+            }
+        }
+        return /*#__PURE__*/ React.cloneElement(c, {
+            key
+        });
+    });
+}
+/**
+ * This component injects elements to `<head>` of your page.
+ * To avoid duplicated `tags` in `<head>` you can use the `key` property, which will make sure every tag is only rendered once.
+ */ function Head({ children }) {
+    const headManager = useContext(HeadManagerContext);
+    return /*#__PURE__*/ _jsx(Effect, {
+        reduceComponentsToState: reduceComponents,
+        headManager: headManager,
+        children: children
+    });
+}
+export default Head;
+
+//# sourceMappingURL=head.js.map