generated from dellevin/template
267 lines
10 KiB
JavaScript
267 lines
10 KiB
JavaScript
/**
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* 博客文章功能 - 获取并展示博客最新文章
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*/
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(function () {
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'use strict';
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const BLOG_API_URL = 'https://blog.iletter.top/api/posts';
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const BLOG_TOKEN = '67192cda-156a-415a-9f3c-97e90a6b818a';
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const PAGE_SIZE = 10;
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let currentPage = 1;
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let hasMore = true;
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let isLoading = false;
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// DOM 元素
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const blogPostsBtn = document.getElementById('blog-posts-btn');
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const blogPostsPreview = document.getElementById('blog-posts-preview');
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const blogPostsFullModal = document.getElementById('blog-posts-full-modal');
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const blogPostsClose = document.getElementById('blog-posts-close');
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const blogPostsList = document.querySelector('.blog-posts-list');
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const blogPostsFullBody = document.querySelector('#blog-posts-full-modal .guestbook-body');
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const previewBody = blogPostsPreview ? blogPostsPreview.querySelector('.preview-body') : null;
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// 初始化
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function init() {
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if (!blogPostsBtn || !blogPostsFullModal) return;
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// 点击按钮打开完整弹窗
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blogPostsBtn.addEventListener('click', openFullModal);
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// 关闭按钮
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blogPostsClose.addEventListener('click', closeFullModal);
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// 页面加载时自动加载数据（用于 Hover 预览）
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loadBlogPosts(true);
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// 监听预览面板滚动事件实现触底加载
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if (previewBody) {
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previewBody.addEventListener('scroll', handleScroll);
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}
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}
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// 处理滚动事件（仅针对预览面板）
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function handleScroll(e) {
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// 如果滚动的是全屏弹窗，则不触发自动加载
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if (e.target.closest('#blog-posts-full-modal')) return;
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const { scrollTop, scrollHeight, clientHeight } = e.target;
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// 距离底部 50px 时触发加载
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if (scrollHeight - scrollTop - clientHeight < 50) {
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loadMoreBlogPosts();
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}
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}
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// 打开完整弹窗
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function openFullModal() {
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blogPostsFullModal.classList.add('active');
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document.body.style.overflow = 'hidden';
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// 首次打开时加载文章
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if (!document.querySelector('.blog-post-item')) {
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loadBlogPosts(true);
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}
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}
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// 关闭完整弹窗
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function closeFullModal() {
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blogPostsFullModal.classList.remove('active');
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document.body.style.overflow = '';
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}
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// 加载文章列表
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async function loadBlogPosts(reset = false) {
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if (isLoading || (!hasMore && !reset)) return;
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isLoading = true;
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if (reset) {
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currentPage = 1;
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hasMore = true;
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if (blogPostsList) blogPostsList.innerHTML = '<div class="guestbook-loading">正在加载文章...</div>';
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if (blogPostsFullBody) blogPostsFullBody.innerHTML = '<div class="guestbook-loading">正在加载文章...</div>';
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}
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try {
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const response = await fetch(`${BLOG_API_URL}?page=${currentPage}&pageSize=${PAGE_SIZE}&showContent=false&showDigest=excerpt&limit=60`, {
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method: 'GET',
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headers: {
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'Content-Type': 'application/json',
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'token': BLOG_TOKEN
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}
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});
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if (!response.ok) {
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throw new Error('Network response was not ok');
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}
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const result = await response.json();
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const posts = result.data.dataSet || [];
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const totalPages = result.data.pages || 0;
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const totalCount = result.data.count || 0; // 获取总数
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// 判断是否还有更多数据
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hasMore = currentPage < totalPages;
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if (reset) {
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renderPosts(posts, true, totalCount);
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} else {
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appendPosts(posts);
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}
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} catch (error) {
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console.error('加载文章失败:', error);
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if (reset) {
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const errorMsg = '<div class="guestbook-empty">加载文章失败，请稍后重试</div>';
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if (blogPostsList) blogPostsList.innerHTML = errorMsg;
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if (blogPostsFullBody) blogPostsFullBody.innerHTML = errorMsg;
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}
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} finally {
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isLoading = false;
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}
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}
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// 渲染文章列表
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function renderPosts(posts, isReset = false, totalCount = 0) {
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// 预览面板 HTML（无底部分页按钮，使用无限滚动）
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let previewHtml = '';
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// 全屏弹窗 HTML（保留底部分页按钮）
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let fullHtml = '';
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if (!posts || posts.length === 0) {
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const emptyHtml = '<div class="guestbook-empty">暂无文章</div>';
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previewHtml = emptyHtml;
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fullHtml = emptyHtml;
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} else {
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const containerHtml = '<div class="blog-posts-container">' +
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posts.map(post => renderPostItem(post)).join('') +
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'</div>';
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previewHtml = containerHtml;
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if (!hasMore) {
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previewHtml += `<div class="load-complete">已显示全部</div>`;
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}
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fullHtml = containerHtml;
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// 弹窗界面保留“点击加载更多”按钮
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if (hasMore) {
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fullHtml += `<button class="load-more-btn" onclick="window.loadMoreBlogPosts()">点击加载更多</button>`;
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} else {
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fullHtml += `<div class="load-complete">已显示全部</div>`;
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}
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}
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if (blogPostsList) blogPostsList.innerHTML = previewHtml;
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if (blogPostsFullBody) blogPostsFullBody.innerHTML = fullHtml;
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// 更新预览面板标题显示总数
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const previewHeader = document.querySelector('#blog-posts-preview .preview-header h3');
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if (previewHeader && totalCount > 0) {
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const lang = localStorage.getItem('preferred_language') || 'zh';
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const translations = {
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'zh': typeof translationsZH !== 'undefined' ? translationsZH : {},
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'en': typeof translationsEN !== 'undefined' ? translationsEN : {}
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};
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const titleText = translations[lang]['blog_latest_posts'] || '最新文章';
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previewHeader.textContent = `${titleText} (${totalCount})`;
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}
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}
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// 追加文章
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function appendPosts(posts) {
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const containers = document.querySelectorAll('.blog-posts-container');
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if (containers.length === 0) {
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console.error('未找到 .blog-posts-container 容器');
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return;
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}
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// 向所有容器追加新文章
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containers.forEach(container => {
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posts.forEach(post => {
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const div = document.createElement('div');
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div.innerHTML = renderPostItem(post);
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container.appendChild(div.firstElementChild);
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});
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// 移除当前容器后的旧按钮和提示（只操作当前容器的兄弟元素）
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let nextSibling = container.nextElementSibling;
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while (nextSibling && (nextSibling.classList.contains('load-more-btn') || nextSibling.classList.contains('load-complete'))) {
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const toRemove = nextSibling;
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nextSibling = nextSibling.nextElementSibling;
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toRemove.remove();
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}
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// 区分预览面板和全屏弹窗：预览面板不显示按钮，全屏弹窗显示按钮
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const isPreview = container.closest('#blog-posts-preview');
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if (!isPreview) {
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if (hasMore) {
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const btn = document.createElement('button');
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btn.className = 'load-more-btn';
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btn.textContent = '点击加载更多';
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btn.onclick = window.loadMoreBlogPosts;
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container.after(btn);
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} else {
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const tip = document.createElement('div');
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tip.className = 'load-complete';
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tip.textContent = '已显示全部';
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container.after(tip);
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}
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} else {
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// 预览面板仅显示完成提示
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if (!hasMore) {
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const tip = document.createElement('div');
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tip.className = 'load-complete';
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tip.textContent = '已显示全部';
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container.after(tip);
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}
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}
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});
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console.log(`成功追加 ${posts.length} 篇文章到 ${containers.length} 个容器，当前页码: ${currentPage}`);
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}
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// 渲染单个文章项
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function renderPostItem(post) {
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const date = new Date(post.created * 1000);
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const dateStr = `${date.getFullYear()}-${String(date.getMonth() + 1).padStart(2, '0')}-${String(date.getDate()).padStart(2, '0')}`;
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const category = post.categories && post.categories.length > 0 ? post.categories[0].name : '未分类';
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const digest = post.digest || '';
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let html = `<div class="blog-post-item" onclick="showCustomConfirm('确定要打开网站吗？\\n${post.permalink}', () => window.open('${post.permalink}', '_blank'))">`;
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html += `<div class="blog-post-title">${escapeHtml(post.title)}</div>`;
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if (digest) {
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html += `<div class="blog-post-digest">${escapeHtml(digest)}</div>`;
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}
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html += `<div class="blog-post-meta">`;
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html += `<span>${dateStr}</span>`;
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html += `<span class="blog-post-category">${escapeHtml(category)}</span>`;
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html += `</div>`;
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html += `</div>`;
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return html;
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}
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// HTML 转义
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function escapeHtml(text) {
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const div = document.createElement('div');
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div.textContent = text;
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return div.innerHTML;
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}
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// 加载更多
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window.loadMoreBlogPosts = function() {
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if (!isLoading && hasMore) {
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currentPage++;
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loadBlogPosts(false);
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}
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};
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// DOM 加载完成后初始化
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if (document.readyState === 'loading') {
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document.addEventListener('DOMContentLoaded', init);
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} else {
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init();
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}
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})();
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