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(function () { |
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function typoCssVarsForEl(typo, prefix, el) { |
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if (!typo) return; |
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if (typo.family) el.style.setProperty(prefix + 'font-family', "'" + typo.family + "', sans-serif"); |
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if (typo.weight) el.style.setProperty(prefix + 'font-weight', typo.weight); |
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if (typo.transform) el.style.setProperty(prefix + 'text-transform', typo.transform); |
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if (typo.style) el.style.setProperty(prefix + 'font-style', typo.style); |
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if (typo.decoration) el.style.setProperty(prefix + 'text-decoration', typo.decoration); |
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var su = typo.sizeUnit || 'px'; |
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if (typo.sizeDesktop !== '' && typo.sizeDesktop != null) el.style.setProperty(prefix + 'font-size-d', typo.sizeDesktop + su); |
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if (typo.sizeTablet !== '' && typo.sizeTablet != null) el.style.setProperty(prefix + 'font-size-t', typo.sizeTablet + su); |
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if (typo.sizeMobile !== '' && typo.sizeMobile != null) el.style.setProperty(prefix + 'font-size-m', typo.sizeMobile + su); |
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var lhu = typo.lineHeightUnit || 'px'; |
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if (typo.lineHeightDesktop !== '' && typo.lineHeightDesktop != null) el.style.setProperty(prefix + 'line-height-d', typo.lineHeightDesktop + lhu); |
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if (typo.lineHeightTablet !== '' && typo.lineHeightTablet != null) el.style.setProperty(prefix + 'line-height-t', typo.lineHeightTablet + lhu); |
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if (typo.lineHeightMobile !== '' && typo.lineHeightMobile != null) el.style.setProperty(prefix + 'line-height-m', typo.lineHeightMobile + lhu); |
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var lsu = typo.letterSpacingUnit || 'px'; |
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if (typo.letterSpacingDesktop !== '' && typo.letterSpacingDesktop != null) { el.style.setProperty(prefix + 'letter-spacing-d', typo.letterSpacingDesktop + lsu); el.style.setProperty(prefix + 'letter-spacing', typo.letterSpacingDesktop + lsu); } |
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if (typo.letterSpacingTablet !== '' && typo.letterSpacingTablet != null) el.style.setProperty(prefix + 'letter-spacing-t', typo.letterSpacingTablet + lsu); |
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if (typo.letterSpacingMobile !== '' && typo.letterSpacingMobile != null) el.style.setProperty(prefix + 'letter-spacing-m', typo.letterSpacingMobile + lsu); |
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var wsu = typo.wordSpacingUnit || 'px'; |
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if (typo.wordSpacingDesktop !== '' && typo.wordSpacingDesktop != null) { el.style.setProperty(prefix + 'word-spacing-d', typo.wordSpacingDesktop + wsu); el.style.setProperty(prefix + 'word-spacing', typo.wordSpacingDesktop + wsu); } |
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if (typo.wordSpacingTablet !== '' && typo.wordSpacingTablet != null) el.style.setProperty(prefix + 'word-spacing-t', typo.wordSpacingTablet + wsu); |
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if (typo.wordSpacingMobile !== '' && typo.wordSpacingMobile != null) el.style.setProperty(prefix + 'word-spacing-m', typo.wordSpacingMobile + wsu); |
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} |
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|
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function initSlider(sliderEl, o, pair) { |
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var isVert = o.orientation === 'vertical'; |
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var pos = (o.startPosition || 50) / 100; // 0..1 |
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|
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// Create structure |
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var beforeDiv = document.createElement('div'); |
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beforeDiv.className = 'bkbg-bag-before'; |
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var beforeImg = document.createElement('img'); |
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beforeImg.src = pair.beforeUrl; |
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beforeImg.alt = pair.beforeAlt || 'Before'; |
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beforeImg.loading = 'lazy'; |
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beforeDiv.appendChild(beforeImg); |
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|
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var afterDiv = document.createElement('div'); |
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afterDiv.className = 'bkbg-bag-after'; |
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var afterImg = document.createElement('img'); |
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afterImg.src = pair.afterUrl; |
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afterImg.alt = pair.afterAlt || 'After'; |
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afterImg.loading = 'lazy'; |
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afterDiv.appendChild(afterImg); |
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|
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var lineEl = document.createElement('div'); |
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lineEl.className = 'bkbg-bag-line'; |
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lineEl.style.background = o.lineColor || '#ffffff'; |
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lineEl.style.width = isVert ? '100%' : (o.lineWidth || 2) + 'px'; |
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lineEl.style.height = isVert ? (o.lineWidth || 2) + 'px' : '100%'; |
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|
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// Handle |
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var handleEl = document.createElement('div'); |
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handleEl.className = 'bkbg-bag-handle'; |
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handleEl.style.width = (o.handleSize || 44) + 'px'; |
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handleEl.style.height = (o.handleSize || 44) + 'px'; |
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handleEl.style.background = o.handleBg || '#ffffff'; |
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handleEl.style.color = o.handleColor || '#374151'; |
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handleEl.style.fontSize = Math.round((o.handleSize || 44) * 0.36) + 'px'; |
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|
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var handleStyle = o.handleStyle || 'circle-arrows'; |
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if (handleStyle === 'circle-arrows') { |
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handleEl.innerHTML = isVert ? '↕' : '↔'; // ↕ or ↔ |
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} else if (handleStyle === 'double-arrow') { |
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handleEl.innerHTML = isVert ? '⤈' : '⤇'; |
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} else if (handleStyle === 'line') { |
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handleEl.style.width = isVert ? '40px' : '3px'; |
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handleEl.style.height = isVert ? '3px' : '40px'; |
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handleEl.style.borderRadius = '3px'; |
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} |
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|
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sliderEl.appendChild(beforeDiv); |
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sliderEl.appendChild(afterDiv); |
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sliderEl.appendChild(lineEl); |
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sliderEl.appendChild(handleEl); |
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|
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// Labels |
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if (o.showLabels) { |
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var lbBefore = document.createElement('span'); |
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lbBefore.className = 'bkbg-bag-label bkbg-bag-label-before'; |
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lbBefore.textContent = pair.beforeLabel || 'Before'; |
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lbBefore.style.background = o.labelBg || 'rgba(0,0,0,0.55)'; |
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lbBefore.style.color = o.labelColor || '#ffffff'; |
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sliderEl.appendChild(lbBefore); |
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|
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var lbAfter = document.createElement('span'); |
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lbAfter.className = 'bkbg-bag-label bkbg-bag-label-after'; |
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lbAfter.textContent = pair.afterLabel || 'After'; |
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lbAfter.style.background = o.labelBg || 'rgba(0,0,0,0.55)'; |
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lbAfter.style.color = o.labelColor || '#ffffff'; |
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sliderEl.appendChild(lbAfter); |
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} |
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|
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function applyPos(p) { |
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var pct = Math.max(0, Math.min(100, p * 100)); |
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if (isVert) { |
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afterDiv.style.clipPath = 'inset(' + pct + '% 0 0 0)'; |
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lineEl.style.top = pct + '%'; |
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lineEl.style.transform = 'translateY(-50%)'; |
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handleEl.style.top = pct + '%'; |
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handleEl.style.left = '50%'; |
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handleEl.style.transform = 'translate(-50%, -50%)'; |
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} else { |
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afterDiv.style.clipPath = 'inset(0 0 0 ' + pct + '%)'; |
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lineEl.style.left = pct + '%'; |
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lineEl.style.transform = 'translateX(-50%)'; |
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handleEl.style.left = pct + '%'; |
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handleEl.style.top = '50%'; |
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handleEl.style.transform = 'translate(-50%, -50%)'; |
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} |
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} |
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|
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applyPos(pos); |
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|
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function getPos(e, rect) { |
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var clientX = e.touches ? e.touches[0].clientX : e.clientX; |
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var clientY = e.touches ? e.touches[0].clientY : e.clientY; |
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if (isVert) { |
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return (clientY - rect.top) / rect.height; |
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} |
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return (clientX - rect.left) / rect.width; |
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} |
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|
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var dragging = false; |
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|
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function onStart(e) { |
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e.preventDefault(); |
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dragging = true; |
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var rect = sliderEl.getBoundingClientRect(); |
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pos = getPos(e, rect); |
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applyPos(pos); |
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} |
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function onMove(e) { |
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if (!dragging) return; |
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e.preventDefault(); |
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var rect = sliderEl.getBoundingClientRect(); |
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pos = getPos(e, rect); |
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applyPos(pos); |
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} |
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function onEnd() { dragging = false; } |
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|
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handleEl.addEventListener('mousedown', onStart); |
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sliderEl.addEventListener('mousedown', onStart); |
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window.addEventListener('mousemove', onMove); |
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window.addEventListener('mouseup', onEnd); |
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|
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handleEl.addEventListener('touchstart', onStart, { passive: false }); |
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sliderEl.addEventListener('touchstart', onStart, { passive: false }); |
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window.addEventListener('touchmove', onMove, { passive: false }); |
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window.addEventListener('touchend', onEnd); |
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} |
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|
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function init() { |
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document.querySelectorAll('.bkbg-bag-app').forEach(function (appEl) { |
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if (appEl.dataset.rendered) return; |
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appEl.dataset.rendered = '1'; |
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var opts; |
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try { opts = JSON.parse(appEl.dataset.opts || '{}'); } catch (e) { opts = {}; } |
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var o = Object.assign({ |
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pairs: [], |
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columns: 2, |
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gap: 20, |
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borderRadius: 12, |
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aspect: '4/3', |
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startPosition: 50, |
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orientation: 'horizontal', |
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showLabels: true, |
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showCaptions: true, |
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handleStyle: 'circle-arrows', |
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handleSize: 44, |
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lineWidth: 2, |
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labelSize: 12, |
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captionSize: 13, |
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handleBg: '#ffffff', |
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handleColor: '#374151', |
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lineColor: '#ffffff', |
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labelBg: 'rgba(0,0,0,0.55)', |
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labelColor: '#ffffff', |
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captionBg: '#f8fafc', |
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captionColor: '#374151', |
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}, opts); |
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|
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if (!o.pairs || !o.pairs.length) return; |
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|
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var aspectParts = (o.aspect || '4/3').split('/'); |
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var aspectRatio = parseInt(aspectParts[1], 10) / parseInt(aspectParts[0], 10) * 100; |
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|
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var outer = document.createElement('div'); |
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outer.className = 'bkbg-bag-outer'; |
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|
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var grid = document.createElement('div'); |
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grid.className = 'bkbg-bag-grid'; |
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grid.style.gridTemplateColumns = 'repeat(' + o.columns + ', 1fr)'; |
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grid.style.gap = o.gap + 'px'; |
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|
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o.pairs.forEach(function (pair) { |
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if (!pair.beforeUrl || !pair.afterUrl) return; |
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|
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var item = document.createElement('div'); |
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item.className = 'bkbg-bag-item'; |
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item.style.borderRadius = o.borderRadius + 'px'; |
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item.style.overflow = 'hidden'; |
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item.style.boxShadow = '0 2px 12px rgba(0,0,0,0.10)'; |
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|
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var slider = document.createElement('div'); |
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slider.className = 'bkbg-bag-slider' + (o.orientation === 'vertical' ? ' orient-vertical' : ''); |
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slider.style.position = 'relative'; |
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slider.style.paddingTop = aspectRatio + '%'; |
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|
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initSlider(slider, o, pair); |
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item.appendChild(slider); |
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|
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if (o.showCaptions && pair.caption) { |
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var cap = document.createElement('div'); |
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cap.className = 'bkbg-bag-caption'; |
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cap.textContent = pair.caption; |
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cap.style.color = o.captionColor || '#374151'; |
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cap.style.background = o.captionBg || '#f8fafc'; |
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item.appendChild(cap); |
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} |
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grid.appendChild(item); |
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}); |
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|
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outer.appendChild(grid); |
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typoCssVarsForEl(opts.labelTypo, '--bkbg-bag-label-', outer); |
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typoCssVarsForEl(opts.captionTypo, '--bkbg-bag-caption-', outer); |
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appEl.parentNode.insertBefore(outer, appEl); |
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appEl.style.display = 'none'; |
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}); |
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} |
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|
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if (document.readyState !== 'loading') { init(); } |
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else { document.addEventListener('DOMContentLoaded', init); } |
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})(); |
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|
