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(function () { |
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'use strict'; |
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|
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var _typoKeys = { |
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family:'font-family', weight:'font-weight', style:'font-style', |
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decoration:'text-decoration', transform:'text-transform', |
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sizeDesktop:'font-size-d', sizeTablet:'font-size-t', sizeMobile:'font-size-m', |
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lineHeightDesktop:'line-height-d', lineHeightTablet:'line-height-t', lineHeightMobile:'line-height-m', |
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letterSpacingDesktop:'letter-spacing-d', letterSpacingTablet:'letter-spacing-t', letterSpacingMobile:'letter-spacing-m', |
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wordSpacingDesktop:'word-spacing-d', wordSpacingTablet:'word-spacing-t', wordSpacingMobile:'word-spacing-m' |
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}; |
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function typoCssVarsForEl(el, obj, prefix) { |
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if (!obj || typeof obj !== 'object') return; |
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Object.keys(_typoKeys).forEach(function (k) { |
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var v = obj[k]; |
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if (v === undefined || v === '' || v === null) return; |
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if (k === 'sizeDesktop' || k === 'sizeTablet' || k === 'sizeMobile') v = v + (obj.sizeUnit || 'px'); |
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else if (k === 'lineHeightDesktop' || k === 'lineHeightTablet' || k === 'lineHeightMobile') v = v + (obj.lineHeightUnit || ''); |
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else if (k === 'letterSpacingDesktop' || k === 'letterSpacingTablet' || k === 'letterSpacingMobile') v = v + (obj.letterSpacingUnit || 'px'); |
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else if (k === 'wordSpacingDesktop' || k === 'wordSpacingTablet' || k === 'wordSpacingMobile') v = v + (obj.wordSpacingUnit || 'px'); |
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el.style.setProperty(prefix + _typoKeys[k], String(v)); |
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}); |
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} |
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|
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function escHtml(str) { |
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if (!str) return ''; |
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return String(str).replace(/&/g,'&').replace(/</g,'<').replace(/>/g,'>').replace(/"/g,'"'); |
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} |
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|
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function trimWords(html, count) { |
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var text = html.replace(/<[^>]+>/g, ''); |
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var words = text.split(/\s+/).filter(Boolean); |
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return words.slice(0, count).join(' ') + (words.length > count ? '…' : ''); |
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} |
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|
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function initCarousel(wrap) { |
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var d = wrap.dataset; |
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|
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var postType = d.postType || 'post'; |
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var orderby = d.orderby || 'date'; |
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var order = d.order || 'desc'; |
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var perPage = parseInt(d.perPage, 10) || 6; |
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var excerptLen = parseInt(d.excerptLen, 10) || 20; |
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var gap = parseInt(d.gap, 10) || 24; |
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var spvDesk = parseInt(d.spv, 10) || 3; |
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var spvTablet = parseInt(d.spvTablet, 10) || 2; |
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var spvMobile = parseInt(d.spvMobile, 10) || 1; |
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var autoplay = d.autoplay !== '0'; |
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var apSpeed = parseInt(d.apSpeed, 10) || 4000; |
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var pauseHover = d.pauseHover !== '0'; |
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var loop = d.loop !== '0'; |
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var showArrows = d.arrows !== '0'; |
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var arrowStyle = d.arrowStyle || 'circle'; |
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var showDots = d.dots !== '0'; |
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var showImage = d.showImage !== '0'; |
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var showMeta = d.showMeta !== '0'; |
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var showExcerpt = d.showExcerpt !== '0'; |
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var showRm = d.showRm !== '0'; |
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var rmLabel = d.rmLabel || 'Read More'; |
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var ratio = d.ratio || '56.25'; |
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var cardStyle = d.cardStyle || 'shadow'; |
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var cardBg = d.cardBg || '#ffffff'; |
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var cardRadius = d.cardRadius || '10'; |
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var titleC = d.titleC || '#111827'; |
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var excerptC = d.excerptC || '#6b7280'; |
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var metaC = d.metaC || '#9ca3af'; |
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var linkC = d.linkC || '#2563eb'; |
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var arrowBg = d.arrowBg || '#ffffff'; |
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var arrowC = d.arrowC || '#111827'; |
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var dotC = d.dotC || '#d1d5db'; |
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var dotActiveC = d.dotActive || '#111827'; |
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|
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var titleTypo = JSON.parse(d.titleTypo || '{}'); |
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var excerptTypo = JSON.parse(d.excerptTypo || '{}'); |
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var metaTypo = JSON.parse(d.metaTypo || '{}'); |
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|
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/* Loading placeholder */ |
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wrap.innerHTML = '<div class="bkbg-poc-loading">Loading posts…</div>'; |
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|
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/* Determine REST base */ |
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var restBase = (window.blockenbergData && window.blockenbergData.restUrl) |
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? window.blockenbergData.restUrl |
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: window.location.origin + '/wp-json/'; |
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|
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var endpoint = restBase + 'wp/v2/' + postType + |
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'?per_page=' + perPage + |
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'&orderby=' + orderby + |
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'&order=' + order + |
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'&_embed=1'; |
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|
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fetch(endpoint) |
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.then(function (r) { return r.ok ? r.json() : Promise.reject(r.status); }) |
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.then(function (posts) { buildCarousel(posts); }) |
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.catch(function () { |
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wrap.innerHTML = '<div class="bkbg-poc-loading">Could not load posts.</div>'; |
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}); |
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|
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function getSpv() { |
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var w = window.innerWidth; |
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if (w < 600) return spvMobile; |
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if (w < 960) return spvTablet; |
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return spvDesk; |
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} |
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|
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function buildCarousel(posts) { |
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if (!posts || !posts.length) { |
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wrap.innerHTML = '<div class="bkbg-poc-loading">No posts found.</div>'; |
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return; |
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} |
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wrap.innerHTML = ''; |
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|
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typoCssVarsForEl(wrap, titleTypo, '--bkbg-poc-tt-'); |
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typoCssVarsForEl(wrap, excerptTypo, '--bkbg-poc-ex-'); |
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typoCssVarsForEl(wrap, metaTypo, '--bkbg-poc-mt-'); |
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|
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/* Track outer */ |
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var trackOuter = document.createElement('div'); |
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trackOuter.className = 'bkbg-poc-track-outer'; |
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var track = document.createElement('div'); |
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track.className = 'bkbg-poc-track'; |
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|
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posts.forEach(function (post) { |
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var card = document.createElement('div'); |
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card.className = 'bkbg-poc-card bkbg-poc-card--' + cardStyle; |
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card.style.cssText = 'background:' + cardBg + ';border-radius:' + cardRadius + 'px;'; |
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|
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/* Image */ |
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if (showImage) { |
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var thumb = post._embedded && post._embedded['wp:featuredmedia'] && post._embedded['wp:featuredmedia'][0]; |
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var imgUrl= thumb ? (thumb.media_details && thumb.media_details.sizes && thumb.media_details.sizes.medium_large |
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? thumb.media_details.sizes.medium_large.source_url |
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: thumb.source_url) : ''; |
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var imgWrap = document.createElement('div'); |
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imgWrap.className = 'bkbg-poc-img-wrap'; |
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imgWrap.style.paddingBottom = ratio + '%'; |
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if (imgUrl) { |
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var img = document.createElement('img'); |
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img.src = imgUrl; |
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img.alt = post.title && post.title.rendered ? post.title.rendered : ''; |
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img.loading = 'lazy'; |
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imgWrap.appendChild(img); |
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} |
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card.appendChild(imgWrap); |
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} |
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|
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/* Body */ |
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var body = document.createElement('div'); |
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body.className = 'bkbg-poc-body'; |
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|
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if (showMeta) { |
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var meta = document.createElement('p'); |
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meta.className = 'bkbg-poc-meta'; |
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meta.style.color = metaC; |
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meta.textContent = new Date(post.date).toLocaleDateString(undefined, { year:'numeric', month:'short', day:'numeric' }); |
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body.appendChild(meta); |
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} |
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|
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var titleLink = document.createElement('a'); |
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titleLink.className = 'bkbg-poc-title'; |
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titleLink.href = post.link; |
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titleLink.style.color = titleC; |
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titleLink.innerHTML = post.title ? post.title.rendered : ''; |
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body.appendChild(titleLink); |
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|
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if (showExcerpt) { |
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var ex = document.createElement('p'); |
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ex.className = 'bkbg-poc-excerpt'; |
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ex.style.color = excerptC; |
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var rawExcerpt = post.excerpt ? post.excerpt.rendered : ''; |
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ex.textContent = trimWords(rawExcerpt, excerptLen); |
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body.appendChild(ex); |
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} |
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|
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if (showRm) { |
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var rm = document.createElement('a'); |
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rm.className = 'bkbg-poc-rm'; |
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rm.href = post.link; |
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rm.style.color = linkC; |
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rm.textContent = rmLabel + ' →'; |
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body.appendChild(rm); |
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} |
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|
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card.appendChild(body); |
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track.appendChild(card); |
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}); |
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|
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trackOuter.appendChild(track); |
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wrap.appendChild(trackOuter); |
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|
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/* Navigation */ |
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var navDiv = document.createElement('div'); |
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navDiv.className = 'bkbg-poc-nav'; |
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|
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var prevBtn, nextBtn, dotsContainer; |
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if (showArrows) { |
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var arrowsDiv = document.createElement('div'); |
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arrowsDiv.className = 'bkbg-poc-arrows'; |
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|
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prevBtn = document.createElement('button'); |
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prevBtn.className = 'bkbg-poc-arrow bkbg-poc-arrow--' + arrowStyle; |
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prevBtn.innerHTML = '‹'; |
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prevBtn.style.background = arrowBg; |
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prevBtn.style.color = arrowC; |
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prevBtn.style.boxShadow = '0 2px 8px rgba(0,0,0,0.12)'; |
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|
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nextBtn = document.createElement('button'); |
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nextBtn.className = 'bkbg-poc-arrow bkbg-poc-arrow--' + arrowStyle; |
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nextBtn.innerHTML = '›'; |
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nextBtn.style.background = arrowBg; |
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nextBtn.style.color = arrowC; |
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nextBtn.style.boxShadow = '0 2px 8px rgba(0,0,0,0.12)'; |
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|
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arrowsDiv.appendChild(prevBtn); |
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arrowsDiv.appendChild(nextBtn); |
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navDiv.appendChild(arrowsDiv); |
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} |
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|
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if (showDots) { |
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dotsContainer = document.createElement('div'); |
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dotsContainer.className = 'bkbg-poc-dots'; |
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var numDots = Math.ceil(posts.length / getSpv()); |
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for (var di = 0; di < numDots; di++) { |
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(function (i) { |
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var dot = document.createElement('button'); |
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dot.className = 'bkbg-poc-dot' + (i === 0 ? ' is-active' : ''); |
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dot.style.background = i === 0 ? dotActiveC : dotC; |
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dot.addEventListener('click', function () { goTo(i); }); |
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dotsContainer.appendChild(dot); |
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})(di); |
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} |
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navDiv.appendChild(dotsContainer); |
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} |
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|
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wrap.appendChild(navDiv); |
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|
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/* State */ |
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var currentIndex = 0; |
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|
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function updateCardWidths() { |
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var spv = getSpv(); |
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var totalGap = gap * (spv - 1); |
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var cardW = 'calc((' + (100 / spv) + '%) - ' + (totalGap / spv) + 'px)'; |
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var cards = track.querySelectorAll('.bkbg-poc-card'); |
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cards.forEach(function (c) { |
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c.style.width = cardW; |
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c.style.marginRight = gap + 'px'; |
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}); |
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if (cards.length) { |
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cards[cards.length - 1].style.marginRight = '0'; |
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} |
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} |
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|
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function goTo(idx) { |
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var spv = getSpv(); |
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var total = posts.length; |
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var max = loop ? total - spv : Math.max(0, total - spv); |
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|
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if (loop) { |
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if (idx >= total) idx = 0; |
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if (idx < 0) idx = total - 1; |
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} else { |
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if (idx > max) idx = max; |
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if (idx < 0) idx = 0; |
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} |
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currentIndex = idx; |
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|
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var cards = track.querySelectorAll('.bkbg-poc-card'); |
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if (!cards.length) return; |
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var cardW = cards[0].offsetWidth + gap; |
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track.style.transform = 'translateX(-' + (cardW * currentIndex) + 'px)'; |
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|
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/* Update dots */ |
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if (dotsContainer) { |
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var dots = dotsContainer.querySelectorAll('.bkbg-poc-dot'); |
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var activeGroup = Math.floor(currentIndex / spv); |
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dots.forEach(function (dot, i) { |
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var isActive = i === activeGroup; |
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dot.classList.toggle('is-active', isActive); |
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dot.style.background = isActive ? dotActiveC : dotC; |
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}); |
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} |
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|
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/* Disable arrows at ends */ |
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if (prevBtn && !loop) { prevBtn.disabled = currentIndex === 0; prevBtn.style.opacity = currentIndex === 0 ? '0.4' : '1'; } |
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if (nextBtn && !loop) { nextBtn.disabled = currentIndex >= max; nextBtn.style.opacity = currentIndex >= max ? '0.4' : '1'; } |
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} |
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|
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/* Autoplay */ |
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var apTimer; |
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function startAutoplay() { |
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if (!autoplay) return; |
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apTimer = setInterval(function () { goTo(currentIndex + 1); }, apSpeed); |
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} |
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function stopAutoplay() { clearInterval(apTimer); } |
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|
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/* Events */ |
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if (prevBtn) prevBtn.addEventListener('click', function () { stopAutoplay(); goTo(currentIndex - 1); startAutoplay(); }); |
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if (nextBtn) nextBtn.addEventListener('click', function () { stopAutoplay(); goTo(currentIndex + 1); startAutoplay(); }); |
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|
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if (pauseHover) { |
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wrap.addEventListener('mouseenter', stopAutoplay); |
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wrap.addEventListener('mouseleave', startAutoplay); |
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} |
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|
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/* Touch swipe */ |
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var touchStartX = 0; |
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trackOuter.addEventListener('touchstart', function (e) { touchStartX = e.touches[0].clientX; }, { passive: true }); |
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trackOuter.addEventListener('touchend', function (e) { |
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var diff = touchStartX - e.changedTouches[0].clientX; |
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if (Math.abs(diff) > 50) { goTo(currentIndex + (diff > 0 ? 1 : -1)); } |
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}); |
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|
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window.addEventListener('resize', function () { |
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updateCardWidths(); |
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goTo(currentIndex); |
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}); |
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|
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/* Init */ |
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updateCardWidths(); |
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goTo(0); |
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startAutoplay(); |
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} |
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} |
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|
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document.addEventListener('DOMContentLoaded', function () { |
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document.querySelectorAll('.bkbg-poc-wrap[data-post-type]').forEach(initCarousel); |
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}); |
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})(); |
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|
