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* Minified by jsDelivr using Terser v5.39.0.\n * Original file: /npm/hexo-theme-next@8.13.0/source/js/utils.js\n *\n * Do NOT use SRI with dynamically generated files! 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');\n const button = element.querySelector('.copy-btn');\n button.addEventListener('click', () => {\n const lines = element.querySelector('.code') || element.querySelector('code');\n const code = lines.innerText;\n if (navigator.clipboard) {\n // https://caniuse.com/mdn-api_clipboard_writetext\n navigator.clipboard.writeText(code).then(() => {\n button.querySelector('i').className = 'fa fa-check-circle fa-fw';\n }, () => {\n button.querySelector('i').className = 'fa fa-times-circle fa-fw';\n });\n } else {\n const ta = document.createElement('textarea');\n ta.style.top = window.scrollY + 'px'; // Prevent page scrolling\n ta.style.position = 'absolute';\n ta.style.opacity = '0';\n ta.readOnly = true;\n ta.value = code;\n document.body.append(ta);\n ta.select();\n ta.setSelectionRange(0, code.length);\n ta.readOnly = false;\n const result = document.execCommand('copy');\n button.querySelector('i').className = result ? 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Math.min(100 * window.scrollY / contentHeight, 100) : 0;\n if (backToTop) {\n backToTop.classList.toggle('back-to-top-on', Math.round(scrollPercent) >= 5);\n backToTop.querySelector('span').innerText = Math.round(scrollPercent) + '%';\n }\n if (readingProgressBar) {\n readingProgressBar.style.setProperty('--progress', scrollPercent.toFixed(2) + '%');\n }\n }\n if (!Array.isArray(NexT.utils.sections)) return;\n let index = NexT.utils.sections.findIndex(element => {\n return element && element.getBoundingClientRect().top > 10;\n });\n if (index === -1) {\n index = NexT.utils.sections.length - 1;\n } else if (index > 0) {\n index--;\n }\n this.activateNavByIndex(index);\n }, { passive: true });\n\n backToTop && backToTop.addEventListener('click', () => {\n window.anime({\n targets : document.scrollingElement,\n duration : 500,\n easing : 'linear',\n scrollTop: 0\n });\n });\n },\n\n /**\n * Tabs tag listener (without twitter bootstrap).\n */\n registerTabsTag: function() {\n // Binding `nav-tabs` & `tab-content` by real time permalink changing.\n document.querySelectorAll('.tabs ul.nav-tabs .tab').forEach(element => {\n element.addEventListener('click', event => {\n event.preventDefault();\n // Prevent selected tab to select again.\n if (element.classList.contains('active')) return;\n const nav = element.parentNode;\n // Add & Remove active class on `nav-tabs` & `tab-content`.\n [...nav.children].forEach(target => {\n target.classList.toggle('active', target === element);\n });\n // https://stackoverflow.com/questions/20306204/using-queryselector-with-ids-that-are-numbers\n const tActive = document.getElementById(element.querySelector('a').getAttribute('href').replace('#', ''));\n [...tActive.parentNode.children].forEach(target => {\n target.classList.toggle('active', target === tActive);\n });\n // Trigger event\n tActive.dispatchEvent(new Event('tabs:click', {\n bubbles: true\n }));\n if (!CONFIG.stickytabs) return;\n const offset = nav.parentNode.getBoundingClientRect().top + window.scrollY + 10;\n window.anime({\n targets : document.scrollingElement,\n duration : 500,\n easing : 'linear',\n scrollTop: offset\n });\n });\n });\n\n window.dispatchEvent(new Event('tabs:register'));\n },\n\n registerCanIUseTag: function() {\n // Get responsive height passed from iframe.\n window.addEventListener('message', ({ data }) => {\n if (typeof data === 'string' && data.includes('ciu_embed')) {\n const featureID = data.split(':')[1];\n const height = data.split(':')[2];\n document.querySelector(`iframe[data-feature=${featureID}]`).style.height = parseInt(height, 10) + 5 + 'px';\n }\n }, false);\n },\n\n registerActiveMenuItem: function() {\n document.querySelectorAll('.menu-item a[href]').forEach(target => {\n const isSamePath = target.pathname === location.pathname || target.pathname === location.pathname.replace('index.html', '');\n const isSubPath = !CONFIG.root.startsWith(target.pathname) && location.pathname.startsWith(target.pathname);\n target.classList.toggle('menu-item-active', target.hostname === location.hostname && (isSamePath || isSubPath));\n });\n },\n\n registerLangSelect: function() {\n const selects = document.querySelectorAll('.lang-select');\n selects.forEach(sel => {\n sel.value = CONFIG.page.lang;\n sel.addEventListener('change', () => {\n const target = sel.options[sel.selectedIndex];\n document.querySelectorAll('.lang-select-label span').forEach(span => {\n span.innerText = target.text;\n });\n // Disable Pjax to force refresh translation of menu item\n window.location.href = target.dataset.href;\n });\n });\n },\n\n registerSidebarTOC: function() {\n this.sections = [...document.querySelectorAll('.post-toc li a.nav-link')].map(element => {\n const target = document.getElementById(decodeURI(element.getAttribute('href')).replace('#', ''));\n // TOC item animation navigate.\n element.addEventListener('click', event => {\n event.preventDefault();\n const 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{\n if (parent.matches('li')) parent.classList.add('active');\n parent = parent.parentNode;\n }\n // Scrolling to center active TOC element if TOC content is taller then viewport.\n const tocElement = document.querySelector('.sidebar-panel-container');\n if (!tocElement.parentNode.classList.contains('sidebar-toc-active')) return;\n window.anime({\n targets : tocElement,\n duration : 200,\n easing : 'linear',\n scrollTop: tocElement.scrollTop - (tocElement.offsetHeight / 2) + target.getBoundingClientRect().top - tocElement.getBoundingClientRect().top\n });\n },\n\n updateSidebarPosition: function() {\n if (window.innerWidth < 992 || CONFIG.scheme === 'Pisces' || CONFIG.scheme === 'Gemini') return;\n // Expand sidebar on post detail page by default, when post has a toc.\n const hasTOC = document.querySelector('.post-toc');\n let display = CONFIG.page.sidebar;\n if (typeof display !== 'boolean') {\n // There's no definition sidebar in the page front-matter.\n display = 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= src;\n }\n (parentNode || document.head).appendChild(script);\n }\n });\n },\n\n loadComments: function(selector, legacyCallback) {\n if (legacyCallback) {\n return this.loadComments(selector).then(legacyCallback);\n }\n return new Promise(resolve => {\n const element = document.querySelector(selector);\n if (!CONFIG.comments.lazyload || !element) {\n resolve();\n return;\n }\n const intersectionObserver = new IntersectionObserver((entries, observer) => {\n const entry = entries[0];\n if (!entry.isIntersecting) return;\n\n resolve();\n observer.disconnect();\n });\n intersectionObserver.observe(element);\n });\n }\n};\n"]}