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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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document.querySelectorAll('.bkbg-rit-app').forEach(function (app) { |
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var o; |
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try { o = JSON.parse(app.dataset.opts || '{}'); } catch (e) { return; } |
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|
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var tiles = Array.isArray(o.tiles) ? o.tiles : []; |
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var columns = o.columns || 3; |
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var tileWidth = o.tileWidth || 300; |
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var tileHeight = o.tileHeight || 200; |
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var tileRadius = o.tileRadius || 16; |
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var flipDuration = o.flipDuration || 600; |
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var staggerDelay = o.staggerDelay || 300; |
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var autoFlip = !!o.autoFlip; |
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var autoInterval = o.autoInterval || 3000; |
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var flipOnHover = !!o.flipOnHover; |
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var flipAxis = o.flipAxis === 'X' ? 'X' : 'Y'; |
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var showLabel = !!o.showLabel; |
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var labelSize = o.labelSize || 14; |
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var labelColor = o.labelColor || '#ffffff'; |
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var labelBg = o.labelBg || 'rgba(0,0,0,0.5)'; |
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var gap = o.gap || 16; |
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|
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var reducedMotion = window.matchMedia('(prefers-reduced-motion: reduce)').matches; |
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|
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/* ── Build grid ── */ |
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var grid = document.createElement('div'); |
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grid.className = 'bkbg-rit-grid bkbg-rit-axis-' + flipAxis.toLowerCase(); |
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grid.style.gridTemplateColumns = 'repeat(' + columns + ', 1fr)'; |
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grid.style.gap = gap + 'px'; |
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|
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typoCssVarsForEl(app, o.labelTypo, '--bkrit-lt-'); |
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|
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var tileElements = []; |
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|
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tiles.forEach(function (tile, idx) { |
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/* outer wrapper (perspective) */ |
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var wrapper = document.createElement('div'); |
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wrapper.className = 'bkbg-rit-tile'; |
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wrapper.style.width = tileWidth + 'px'; |
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wrapper.style.height = tileHeight + 'px'; |
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wrapper.style.borderRadius = tileRadius + 'px'; |
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wrapper.style.maxWidth = '100%'; |
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|
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/* flip inner */ |
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var inner = document.createElement('div'); |
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inner.className = 'bkbg-rit-inner'; |
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inner.style.transitionDuration = (reducedMotion ? 0 : flipDuration) + 'ms'; |
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|
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/* front face */ |
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var front = document.createElement('div'); |
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front.className = 'bkbg-rit-front'; |
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front.style.borderRadius = tileRadius + 'px'; |
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if (tile.frontUrl) { |
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front.style.backgroundImage = 'url(' + tile.frontUrl + ')'; |
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} else { |
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front.style.background = tile.frontBg || '#6366f1'; |
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} |
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|
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/* back face */ |
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var back = document.createElement('div'); |
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back.className = 'bkbg-rit-back'; |
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back.style.borderRadius = tileRadius + 'px'; |
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if (tile.backUrl) { |
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back.style.backgroundImage = 'url(' + tile.backUrl + ')'; |
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} else { |
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back.style.background = tile.backBg || '#a5b4fc'; |
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} |
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|
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/* label (on back face) */ |
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if (showLabel && tile.label) { |
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var label = document.createElement('div'); |
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label.className = 'bkbg-rit-label'; |
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label.textContent = tile.label; |
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label.style.color = labelColor; |
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label.style.background = labelBg; |
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back.appendChild(label); |
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} |
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|
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inner.appendChild(front); |
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inner.appendChild(back); |
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wrapper.appendChild(inner); |
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grid.appendChild(wrapper); |
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|
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tileElements.push({ wrapper: wrapper, inner: inner, flipped: false }); |
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|
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/* flip on hover */ |
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if (flipOnHover && !reducedMotion) { |
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wrapper.addEventListener('mouseenter', function () { |
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inner.classList.add('bkbg-rit-flipped'); |
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tileElements[idx].flipped = true; |
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}); |
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wrapper.addEventListener('mouseleave', function () { |
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inner.classList.remove('bkbg-rit-flipped'); |
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tileElements[idx].flipped = false; |
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}); |
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} |
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|
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/* click to flip toggle */ |
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wrapper.addEventListener('click', function () { |
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var tf = tileElements[idx]; |
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tf.flipped = !tf.flipped; |
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tf.inner.classList.toggle('bkbg-rit-flipped', tf.flipped); |
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}); |
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}); |
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|
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app.appendChild(grid); |
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|
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/* ── Auto flip ── */ |
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if (autoFlip && !reducedMotion) { |
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var currentIdx = 0; |
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var flipping = false; |
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|
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function flipNext() { |
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if (flipping || tileElements.length === 0) return; |
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flipping = true; |
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|
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var sequence = tileElements.map(function (_, i) { return i; }); |
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|
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sequence.forEach(function (i, order) { |
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setTimeout(function () { |
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tileElements[i].flipped = true; |
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tileElements[i].inner.classList.add('bkbg-rit-flipped'); |
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}, order * staggerDelay); |
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}); |
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|
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var totalDelay = sequence.length * staggerDelay + flipDuration + 200; |
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|
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setTimeout(function () { |
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sequence.forEach(function (i, order) { |
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setTimeout(function () { |
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tileElements[i].flipped = false; |
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tileElements[i].inner.classList.remove('bkbg-rit-flipped'); |
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}, order * staggerDelay); |
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}); |
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|
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setTimeout(function () { |
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flipping = false; |
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}, sequence.length * staggerDelay + flipDuration); |
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}, totalDelay); |
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} |
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|
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/* Use Intersection Observer to trigger only when visible */ |
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var autoTimer = null; |
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|
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function startAuto() { |
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if (autoTimer) return; |
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autoTimer = setInterval(flipNext, autoInterval + tileElements.length * staggerDelay + flipDuration * 2 + 600); |
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} |
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function stopAuto() { |
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if (autoTimer) { clearInterval(autoTimer); autoTimer = null; } |
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} |
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|
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var observer = new IntersectionObserver(function (entries) { |
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entries.forEach(function (entry) { |
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if (entry.isIntersecting) { startAuto(); } |
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else { stopAuto(); } |
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}); |
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}, { threshold: 0.1 }); |
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|
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observer.observe(app); |
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} |
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}); |
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}()); |
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