Merge pull request #48 from tangly1024/theme-medium

分页

themes/Medium/LayoutCategory.js

@@ -1,8 +1,8 @@
 import LayoutBase from './LayoutBase'
-import BlogPostListPage from './components/BlogPostListPage'
+import BlogPostListScroll from './components/BlogPostListScroll'
 
 export const LayoutCategory = (props) => {
   return <LayoutBase {...props}>
-    <BlogPostListPage {...props} />
+    <BlogPostListScroll {...props} />
   </LayoutBase>
 }

themes/Medium/LayoutSearch.js

@@ -4,6 +4,7 @@ import SearchInput from './components/SearchInput'
 import { useGlobal } from '@/lib/global'
 import TagGroups from './components/TagGroups'
 import CategoryGroup from './components/CategoryGroup'
+import BlogPostListScroll from './components/BlogPostListScroll'
 
 export const LayoutSearch = (props) => {
   const { locale } = useGlobal()
@@ -19,6 +20,6 @@ export const LayoutSearch = (props) => {
       <CategoryGroup {...props}/>
     </div>
 
-    <BlogPostListPage {...props}/>
+    <BlogPostListScroll {...props}/>
   </LayoutBase>
 }

themes/Medium/LayoutTag.js

@@ -1,8 +1,8 @@
 import LayoutBase from './LayoutBase'
-import BlogPostListPage from './components/BlogPostListPage'
+import BlogPostListScroll from './components/BlogPostListScroll'
 
 export const LayoutTag = (props) => {
   return <LayoutBase>
-    <BlogPostListPage {...props} />
+    <BlogPostListScroll {...props} />
    </LayoutBase>
 }

themes/Medium/components/BlogPostCard.js

@@ -4,7 +4,7 @@ import { faAngleRight } from '@fortawesome/free-solid-svg-icons'
 import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
 import Link from 'next/link'
 import React from 'react'
-import { Code, Collection, CollectionRow, Equation, NotionRenderer } from 'react-notion-x'
+import { Code, Collection, Equation, NotionRenderer } from 'react-notion-x'
 import CONFIG_MEDIUM from '../config_medium'
 
 const BlogPostCard = ({ post, showSummary }) => {
@@ -36,7 +36,6 @@ const BlogPostCard = ({ post, showSummary }) => {
               components={{
                 equation: Equation,
                 code: Code,
-                collectionRow: CollectionRow,
                 collection: Collection
               }}
             />

themes/Medium/components/BlogPostListPage.js

@@ -13,17 +13,7 @@ import { useRouter } from 'next/router'
  * @constructor
  */
 const BlogPostListPage = ({ page = 1, posts = [], postCount }) => {
-  let filteredPosts = Object.assign(posts)
-  const searchKey = getSearchKey()
-  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 filteredPostsCount = filteredPosts.length
-  const totalPage = Math.ceil(filteredPostsCount / BLOG.POSTS_PER_PAGE)
+  const totalPage = Math.ceil(postCount / BLOG.POSTS_PER_PAGE)
 
   if (!posts || posts.length === 0) {
     return <BlogPostListEmpty />
@@ -31,7 +21,7 @@ const BlogPostListPage = ({ page = 1, posts = [], postCount }) => {
     return (
       <div id="container" className='w-full justify-center'>
         {/* 文章列表 */}
-        {filteredPosts.map(post => (
+        {posts.map(post => (
           <BlogPostCard key={post.id} post={post} />
         ))}
         <PaginationSimple page={page} totalPage={totalPage} />
@@ -40,12 +30,4 @@ const BlogPostListPage = ({ page = 1, posts = [], postCount }) => {
   }
 }
 
-function getSearchKey () {
-  const router = useRouter()
-  if (router.query && router.query.s) {
-    return router.query.s
-  }
-  return null
-}
-
 export default BlogPostListPage

themes/Medium/components/BlogPostListScroll.js

@@ -0,0 +1,106 @@
+import BLOG from '@/blog.config'
+import BlogPostCard from './BlogPostCard'
+import BlogPostListEmpty from './BlogPostListEmpty'
+import { useGlobal } from '@/lib/global'
+import throttle from 'lodash.throttle'
+import React, { useCallback, useEffect, useRef, useState } from 'react'
+import { useRouter } from 'next/router'
+
+/**
+ * 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 postsPerPage = BLOG.POSTS_PER_PAGE
+  const [page, updatePage] = useState(1)
+  let filteredPosts = Object.assign(posts)
+  const searchKey = getSearchKey()
+  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, postsPerPage)
+
+  let hasMore = false
+  if (filteredPosts) {
+    const totalCount = filteredPosts.length
+    hasMore = page * postsPerPage < 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='container' 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 glassmorphism shadow-xl rounded-xl 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 postsPerPage 每页文章数量
+ * @returns {*}
+ */
+const getPostByPage = function (page, totalPosts, postsPerPage) {
+  return totalPosts.slice(
+    0,
+    postsPerPage * page
+  )
+}
+
+function getSearchKey () {
+  const router = useRouter()
+  if (router.query && router.query.s) {
+    return router.query.s
+  }
+  return null
+}
+
+export default BlogPostListScroll