magzine主题雏形

themes/magzine/components/BlogPostListScroll.js

@@ -0,0 +1,107 @@
+import { siteConfig } from '@/lib/config'
+import { useGlobal } from '@/lib/global'
+import throttle from 'lodash.throttle'
+import { useRouter } from 'next/router'
+import { useCallback, useEffect, useRef, useState } from 'react'
+import BlogPostCard from './BlogPostCard'
+import BlogPostListEmpty from './BlogPostListEmpty'
+
+/**
+ * 博客列表滚动分页
+ * @param posts 所有文章
+ * @param tags 所有标签
+ * @returns {JSX.Element}
+ * @constructor
+ */
+const BlogPostListScroll = ({ posts = [], currentSearch }) => {
+  const { NOTION_CONFIG } = useGlobal()
+  const POSTS_PER_PAGE = siteConfig('POSTS_PER_PAGE', null, NOTION_CONFIG)
+  const [page, updatePage] = useState(1)
+  const router = useRouter()
+  let filteredPosts = Object.assign(posts)
+  const searchKey = router?.query?.s || null
+  if (searchKey) {
+    filteredPosts = posts.filter(post => {
+      const tagContent = post?.tags ? post?.tags.join(' ') : ''
+      const searchContent = post.title + post.summary + tagContent
+      return searchContent.toLowerCase().includes(searchKey.toLowerCase())
+    })
+  }
+  const postsToShow = getPostByPage(page, filteredPosts, POSTS_PER_PAGE)
+
+  let hasMore = false
+  if (filteredPosts) {
+    const totalCount = filteredPosts.length
+    hasMore = page * POSTS_PER_PAGE < totalCount
+  }
+
+  const handleGetMore = () => {
+    if (!hasMore) return
+    updatePage(page + 1)
+  }
+
+  // 监听滚动自动分页加载
+  const scrollTrigger = useCallback(
+    throttle(() => {
+      const scrollS = window.scrollY + window.outerHeight
+      const clientHeight = targetRef
+        ? targetRef.current
+          ? targetRef.current.clientHeight
+          : 0
+        : 0
+      if (scrollS > clientHeight + 100) {
+        handleGetMore()
+      }
+    }, 500)
+  )
+
+  // 监听滚动
+  useEffect(() => {
+    window.addEventListener('scroll', scrollTrigger)
+    return () => {
+      window.removeEventListener('scroll', scrollTrigger)
+    }
+  })
+
+  const targetRef = useRef(null)
+  const { locale } = useGlobal()
+
+  if (!postsToShow || postsToShow.length === 0) {
+    return <BlogPostListEmpty currentSearch={currentSearch} />
+  } else {
+    return (
+      <div id='posts-wrapper' ref={targetRef} className='w-full'>
+        {/* 文章列表 */}
+        <div className='space-y-1 lg:space-y-4'>
+          {postsToShow?.map(post => (
+            <BlogPostCard key={post.id} post={post} showSummary={true} />
+          ))}
+        </div>
+
+        <div>
+          <div
+            onClick={() => {
+              handleGetMore()
+            }}
+            className='w-full my-4 py-4 text-center cursor-pointer dark:text-gray-200'>
+            {' '}
+            {hasMore ? locale.COMMON.MORE : `${locale.COMMON.NO_MORE} 😰`}{' '}
+          </div>
+        </div>
+      </div>
+    )
+  }
+}
+
+/**
+ * 获取从第1页到指定页码的文章
+ * @param page 第几页
+ * @param totalPosts 所有文章
+ * @param POSTS_PER_PAGE 每页文章数量
+ * @returns {*}
+ */
+const getPostByPage = function (page, totalPosts, POSTS_PER_PAGE) {
+  return totalPosts.slice(0, POSTS_PER_PAGE * page)
+}
+
+export default BlogPostListScroll