/opt/canhelp/node_modules/next/dist/esm/shared/lib
Edit: /opt/canhelp/node_modules/next/dist/esm/shared/lib/head.js (5741B)
'use client';
import { jsx as _jsx } from "react/jsx-runtime";
import React, { useContext } from 'react';
import Effect from './side-effect';
import { AmpStateContext } from './amp-context.shared-runtime';
import { HeadManagerContext } from './head-manager-context.shared-runtime';
import { isInAmpMode } from './amp-mode';
import { warnOnce } from './utils/warn-once';
export function defaultHead(inAmpMode) {
if (inAmpMode === void 0) inAmpMode = false;
const head = [
/*#__PURE__*/ _jsx("meta", {
charSet: "utf-8"
}, "charset")
];
if (!inAmpMode) {
head.push(/*#__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
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
*/ function reduceComponents(headChildrenElements, props) {
const { inAmpMode } = props;
return headChildrenElements.reduce(onlyReactElement, []).reverse().concat(defaultHead(inAmpMode).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'] ? '