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Diffstat (limited to 'assets/js/pjax.js')
| -rw-r--r-- | assets/js/pjax.js | 354 |
1 files changed, 354 insertions, 0 deletions
diff --git a/assets/js/pjax.js b/assets/js/pjax.js new file mode 100644 index 0000000..1f663f3 --- /dev/null +++ b/assets/js/pjax.js @@ -0,0 +1,354 @@ +/** + * PJAX 初始化与页面切换重绑定脚本 + * 依赖:jQuery, jquery.pjax.min.js + * 加载顺序:在 jquery.pjax.min.js 之后,body 末尾 + */ + +(function ($) { + // ========== 常量 ========== + var CONTAINER = '#pjax-container'; + var PJAX_OPTS = { + container: CONTAINER, + fragment: CONTAINER, + timeout: 8000, + scrollTo: false + }; + + // ========== 工具函数 ========== + + var _loadedScripts = {}; + var _pendingScripts = []; + + /** 动态加载外部 CSS(避免重复加载) */ + function loadCSS(href) { + if ($('link[href="' + href + '"]').length) return; + $('<link rel="stylesheet" href="' + href + '" />').appendTo('head'); + } + + /** + * 动态加载外部 JS(避免重复) + * 用对象跟踪已加载的 URL,而不是检查 DOM 中的 <script> 标签 + * (pjax 替换容器内容后,惰性 <script> 标签存在但不代表已执行) + */ + function loadScript(src, callback) { + if (_loadedScripts[src]) { + if (typeof callback === 'function') callback(); + return; + } + _loadedScripts[src] = true; + var s = document.createElement('script'); + s.src = src; + s.onload = callback || null; + document.body.appendChild(s); + } + + /** + * 按顺序执行脚本数组(内联和外部混合) + * 外部脚本加载完成后再执行后续内联脚本,保持依赖顺序 + */ + function executeScripts(scripts) { + var idx = 0; + function runNext() { + while (idx < scripts.length) { + var s = scripts[idx]; + idx++; + if (s.src) { + loadScript(s.src, runNext); + return; // 等待 onload 回调 + } + try { + (window.execScript || function (code) { + window['eval'].call(window, code); + })(s.text); + } catch (e) { + console.warn('[pjax] inline script exec error:', e); + } + } + } + runNext(); + } + + // ========== 页面类型判断 ========== + + /** 是否为文章页(非首页/分页) */ + function isPostPage(pathname) { + return !/^(\/(index\.html)?|\/page\d+(\/index\.html)?)$/.test(pathname || window.location.pathname); + } + + /** 是否为真正的文章页(用 DOM 特征判断,仅 post 布局才有这些元素) */ + function isRealPostPage() { + return $(CONTAINER + ' #gitalk-container').length > 0; + } + + // ========== 欢迎语生成 ========== + + /** + * 根据当前时间和页面生成 Live2D 欢迎语 + * 此函数暴露到 window._live2d.getWelcomeText,供 message.js 首次加载时复用 + * @param {string} [pathname] - 页面路径,默认当前路径 + * @param {string} [title] - 页面标题,默认从 document.title 提取 + * @returns {string} 欢迎语 HTML + */ + function getWelcomeText(pathname, title) { + pathname = pathname || window.location.pathname; + title = title || document.title.split(' | ')[0]; + + if (pathname === '/' || pathname === '/index.html') { + var now = (new Date()).getHours(); + if (now > 23 || now <= 5) return '你是夜猫子呀?这么晚还不睡觉,明天起的来嘛?'; + if (now > 5 && now <= 7) return '早上好!一日之计在于晨,美好的一天就要开始了!'; + if (now > 7 && now <= 11) return '上午好!工作顺利嘛,不要久坐,多起来走动走动哦!'; + if (now > 11 && now <= 14) return '中午了,工作了一个上午,现在是午餐时间!'; + if (now > 14 && now <= 17) return '午后很容易犯困呢,今天的运动目标完成了吗?'; + if (now > 17 && now <= 19) return '傍晚了!窗外夕阳的景色很美丽呢,最美不过夕阳红~~'; + if (now > 19 && now <= 21) return '晚上好,今天过得怎么样?'; + if (now > 21 && now <= 23) return '已经这么晚了呀,早点休息吧,晚安~~'; + return '嗨~ 快来逗我玩吧!'; + } + return '欢迎阅读<span style="color:#0099cc;">「 ' + title + ' 」</span>'; + } + + // ========== 各组件重初始化 ========== + + /** 访问量统计 */ + function reinitVisitors() { + if (typeof BlogAPI === 'undefined') return; + var apiBase = BlogAPI; + if ($('.visitors').length === 1) { + var $visitor = $('.visitors:first'); + $.get(apiBase + '/count_click_add?id=' + $visitor.attr('id'), function (data) { + $visitor.text(Number(data)); + }); + } else if ($('.visitors-index').length > 0) { + $('.visitors-index').each(function () { + var $elem = $(this); + $.get(apiBase + '/count_click?id=' + $elem.attr('id'), function (data) { + $elem.text(Number(data)); + }); + }); + } + } + + /** AI 摘要(post.html 内联脚本,pjax 后由 executeScripts 触发) */ + function reinitAISummary() { + if (typeof ai_gen === 'function' && $('#ai-output').length) { + try { ai_gen(); } catch (e) { /* ignore */ } + } + } + + /** 代码块复制按钮 */ + function reinitCopyButtons() { + $('.copy').remove(); + $('div.highlight').each(function () { + var $block = $(this); + var $btn = $('<button>', { class: 'copy', type: 'button', text: '📋' }); + $block.append($btn); + $btn.on('click', function () { + var code = $btn.siblings('pre').find('code').text().trim(); + navigator.clipboard.writeText(code) + .then(function () { $btn.text('✅'); }) + .catch(function () { $btn.text('❌'); }) + .finally(function () { setTimeout(function () { $btn.text('📋'); }, 1500); }); + }); + }); + } + + /** Gitalk 评论(post 页面专属) */ + function reinitGitalk() { + if ($(CONTAINER + ' #gitalk-container').length === 0) return; + loadCSS('/assets/css/gitalk.css'); + + function doInitGitalk() { + if (typeof Gitalk === 'undefined') { + loadScript('/assets/js/gitalk.min.js', doInitGitalk); + return; + } + var pageId = $(CONTAINER + ' #gitalk-container').data('page-id') || window.location.pathname; + try { + new Gitalk(Object.assign({ id: pageId }, window.GitalkConfig)) + .render('gitalk-container'); + } catch (e) { + console.warn('[pjax] Gitalk init error:', e); + } + } + $('#gitalk-container').empty(); + doInitGitalk(); + } + + /** 关键词高亮 */ + function reinitHighlight() { + var keyword = new URLSearchParams(window.location.search).get('kw'); + if (!keyword) return; + keyword = keyword.trim(); + if (!keyword) return; + + var escaped = keyword.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'); + var regex = new RegExp('(' + escaped + ')', 'gi'); + var escapeHTML = function (str) { + return str.replace(/[&<>"']/g, function (t) { + return { '&': '&', '<': '<', '>': '>', '"': '"', "'": ''' }[t] || t; + }); + }; + function walk(node) { + $(node).contents().each(function () { + if (this.nodeType === Node.TEXT_NODE) { + var $t = $(this); + var text = escapeHTML($t.text()); + if (regex.test(text)) $t.replaceWith(text.replace(regex, '<mark>$1</mark>')); + } else if (this.nodeType === Node.ELEMENT_NODE && !$(this).is('script, style, noscript, textarea')) { + walk(this); + } + }); + } + $('section').each(function () { walk(this); }); + } + + /** Google Analytics 页面浏览事件 */ + function trackPageView() { + if (typeof gtag === 'function') { + gtag('config', window._gaId || '', { page_path: window.location.pathname }); + } + } + + /** Live2D 重初始化 */ + var _live2dSelectors = ['.post-link', '#search-input']; + var _live2dDelegateBound = false; + + function reinitLive2d() { + if (!window._live2d) return; + var pathname = window.location.pathname; + + // 更新"想问这篇文章"相关状态(仅真正的文章页显示) + $('#post_id').val(pathname); + if (isRealPostPage()) { + $('.live_talk_input_name_body').show(); + } else { + $('.live_talk_input_name_body').hide(); + $('#load_this').prop('checked', false); + } + + // 音乐按钮:根据当前页面是否有 BGM 输入来显示/隐藏 + if (typeof window._live2d.initBGM === 'function') { + window._live2d.initBGM(); + } + + // 事件委托绑定(只执行一次) + if (!_live2dDelegateBound && typeof String.prototype.renderTip === 'function') { + var selector = CONTAINER + ' ' + _live2dSelectors.join(', ' + CONTAINER + ' '); + $(document).on('mouseover._live2d_pjax', selector, function (e) { + var $el = $(e.currentTarget || e.target); + if ($el.is('.post-link')) { + window._live2d.showMessage('要看看 ' + $el.text() + ' 么?', 3000); + } else if ($el.is('#search-input')) { + window._live2d.showMessage('在找什么东西呢,需要帮忙吗?', 3000); + } + }); + $(document).on('mouseout._live2d_pjax', selector, function () { + if (window._live2d.showHitokoto) window._live2d.showHitokoto(); + }); + _live2dDelegateBound = true; + } + + // 欢迎语 + if (typeof window._live2d.showMessage === 'function') { + window._live2d.showMessage(getWelcomeText(pathname), 6000); + } + } + + // ========== PJAX 导航 ========== + + /** PJAX 完成后的统一处理 */ + function doPjaxComplete() { + $('body').removeClass('pjax-loading'); + // go() 路径:脚本在 DOM 替换前提取到了 _pendingScripts,需在此执行 + // pjax 库路径:_pendingScripts 为空,pjax 库自行处理了脚本执行 + if (_pendingScripts.length > 0) { + executeScripts(_pendingScripts); + _pendingScripts = []; + } + onPjaxComplete(); + } + + /** 暴露给模板内 onclick/onchange 调用的导航函数 */ + window.go = function (url) { + if (!url || url === '#') return; + if (/^(https?:)?\/\//.test(url) || url.startsWith('mailto:')) { + window.location.href = url; + return; + } + $('body').addClass('pjax-loading'); + $.ajax({ + url: url, + beforeSend: function (xhr) { + xhr.setRequestHeader('X-PJAX', 'true'); + xhr.setRequestHeader('X-PJAX-Container', CONTAINER); + }, + success: function (html) { + try { + var doc = (new DOMParser()).parseFromString(html, 'text/html'); + var fragment = doc.querySelector(CONTAINER); + if (fragment) { + // 先提取脚本(jQuery html() 会移除并可能异步处理脚本) + _pendingScripts = []; + fragment.querySelectorAll('script').forEach(function (s) { + _pendingScripts.push({ + src: s.src || null, + text: s.textContent + }); + s.remove(); + }); + $(CONTAINER).html(fragment.innerHTML); + document.title = doc.title; + history.pushState({ url: url }, document.title, url); + doPjaxComplete(); + } else { + window.location.href = url; + } + } catch (e) { + console.warn('[go] parse error, fallback:', e); + window.location.href = url; + } + }, + error: function () { window.location.href = url; }, + timeout: PJAX_OPTS.timeout + }); + }; + + /** 暴露 getWelcomeText 供 message.js 首次加载时复用,避免欢迎语逻辑重复 */ + window._pjaxGetWelcomeText = getWelcomeText; + + // ========== 初始化 ========== + + /** 每次 pjax 完成后执行所有重初始化 */ + function onPjaxComplete() { + reinitVisitors(); + reinitCopyButtons(); + reinitHighlight(); + reinitGitalk(); + reinitAISummary(); + reinitLive2d(); + trackPageView(); + window.scrollTo(0, 0); + } + + $(document).ready(function () { + // 排除列表:外链、锚点、静态资源、Live2D 目录 + var exclude = ':not([target="_blank"]):not([href^="http"]):not([href^="//"])' + + ':not([href^="mailto"]):not([href^="#"])' + + ':not([href$=".xml"]):not([href$=".json"]):not([href$=".tgz"]):not([href$=".zip"])' + + ':not([href^="/Live2dHistoire"])'; + $(document).pjax('a' + exclude, PJAX_OPTS.container, PJAX_OPTS); + + $(document).on('pjax:send', function () { + $('body').addClass('pjax-loading'); + }); + $(document).on('pjax:complete', doPjaxComplete); + $(document).on('pjax:error', function (xhr, textStatus, error) { + console.warn('[pjax] error, fallback:', error); + }); + + // 首次加载初始化 + reinitCopyButtons(); + }); + +})(jQuery); |
