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(function () { |
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'use strict'; |
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|
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var reduced = window.matchMedia('(prefers-reduced-motion: reduce)').matches; |
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|
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/* ── Typography CSS vars helper ──────────────────────────────── */ |
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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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/* ── Scatter vector helpers ────────────────────────────────────── */ |
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function randBetween(a, b) { return a + Math.random() * (b - a); } |
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|
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function getScatterVector(mode, radius, index, total) { |
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switch (mode) { |
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case 'rain': { |
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var angle = randBetween(-0.4, 0.4) * Math.PI + Math.PI / 2; |
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return { |
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x: Math.cos(angle) * randBetween(radius * 0.2, radius * 0.6), |
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y: Math.sin(angle) * randBetween(radius * 0.6, radius), |
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rot: randBetween(-60, 60) |
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}; |
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} |
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case 'float': { |
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return { |
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x: randBetween(-radius * 0.3, radius * 0.3), |
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y: -randBetween(radius * 0.5, radius), |
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rot: randBetween(-30, 30) |
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}; |
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} |
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case 'spin': { |
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var a = (index / total) * Math.PI * 2 + randBetween(-0.5, 0.5); |
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var r = randBetween(radius * 0.5, radius); |
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return { x: Math.cos(a) * r, y: Math.sin(a) * r, rot: randBetween(-180, 180) }; |
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} |
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default: { /* explode */ |
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var ang = randBetween(0, Math.PI * 2); |
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var rad = randBetween(radius * 0.4, radius); |
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return { x: Math.cos(ang) * rad, y: Math.sin(ang) * rad, rot: randBetween(-90, 90) }; |
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} |
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} |
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} |
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|
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/* ── Build & animate one kinetic text block ──────────────────────── */ |
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function initBlock(root) { |
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var app = root.querySelector('.bkbg-kt-app'); |
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if (!app) return; |
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|
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var raw = app.getAttribute('data-opts') || '{}'; |
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var o; |
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try { o = JSON.parse(raw); } catch (e) { o = {}; } |
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|
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var text = o.text || ''; |
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var tag = o.tag || 'h2'; |
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var trigger = o.trigger || 'hover'; |
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var mode = o.scatterMode || 'explode'; |
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var radius = Number(o.scatterRadius) || 120; |
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var scatterDur = Number(o.scatterDuration) || 400; |
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var returnDur = Number(o.returnDuration) || 600; |
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var stagger = Number(o.stagger) || 20; |
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var fontSize = Number(o.fontSize) || 56; |
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var fontWeight = Number(o.fontWeight) || 700; |
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var letterSpacing = Number(o.letterSpacing) || 0; |
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var textAlign = o.textAlign || 'center'; |
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var textColor = o.textColor || '#0f172a'; |
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var hoverColor = o.hoverColor || '#6366f1'; |
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var bgColor = o.bgColor || 'transparent'; |
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|
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/* ── Parent wrapper ─────────────────────────────────────────── */ |
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root.style.background = bgColor; |
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typoCssVarsForEl(root, o.textTypo, '--bkbg-kt-tx-'); |
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|
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var container = document.createElement(tag); |
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container.className = 'bkbg-kt-text'; |
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container.style.cssText = [ |
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'text-align:' + textAlign, |
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'justify-content:' + (textAlign === 'center' ? 'center' : textAlign === 'right' ? 'flex-end' : 'flex-start'), |
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'display:flex', |
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'flex-wrap:wrap', |
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'align-items:baseline', |
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'margin:0', |
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'user-select:none', |
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'cursor:default' |
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].join(';'); |
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|
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/* ── Split into spans ──────────────────────────────────────── */ |
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var chars = text.split(''); |
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var spans = chars.map(function (ch) { |
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var span = document.createElement('span'); |
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span.className = 'bkbg-kt-char'; |
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span.textContent = ch === ' ' ? '\u00a0' : ch; |
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span.style.color = textColor; |
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container.appendChild(span); |
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return span; |
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}); |
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|
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app.appendChild(container); |
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if (reduced) return; |
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|
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/* ── Scatter state ────────────────────────────────────────── */ |
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var scattered = false; |
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var vectors = []; |
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|
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function computeVectors() { |
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vectors = spans.map(function (_, i) { |
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return getScatterVector(mode, radius, i, spans.length); |
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}); |
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} |
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computeVectors(); |
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|
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function scatter() { |
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if (scattered) return; |
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scattered = true; |
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spans.forEach(function (span, i) { |
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var v = vectors[i]; |
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var del = i * stagger; |
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span.classList.add('bkbg-kt-scattered'); |
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span.style.transitionDuration = scatterDur + 'ms'; |
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span.style.transitionDelay = del + 'ms'; |
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span.style.transform = 'translate(' + v.x + 'px,' + v.y + 'px) rotate(' + v.rot + 'deg)'; |
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span.style.opacity = '0'; |
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span.style.color = hoverColor; |
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}); |
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} |
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|
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function collect() { |
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if (!scattered) return; |
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scattered = false; |
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computeVectors(); |
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spans.forEach(function (span, i) { |
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var del = (spans.length - 1 - i) * stagger * 0.5; |
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span.classList.remove('bkbg-kt-scattered'); |
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span.style.transitionDuration = returnDur + 'ms'; |
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span.style.transitionDelay = del + 'ms'; |
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span.style.transform = 'translate(0,0) rotate(0deg)'; |
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span.style.opacity = '1'; |
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span.style.color = textColor; |
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}); |
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} |
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|
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/* ── Attach trigger ───────────────────────────────────────── */ |
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if (trigger === 'hover') { |
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container.addEventListener('mouseenter', scatter); |
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container.addEventListener('mouseleave', collect); |
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} else if (trigger === 'click') { |
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container.addEventListener('click', function () { |
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scattered ? collect() : scatter(); |
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}); |
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} else if (trigger === 'auto') { |
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var loopTimeout; |
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function loopScatter() { |
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scatter(); |
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loopTimeout = setTimeout(function () { |
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collect(); |
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loopTimeout = setTimeout(loopScatter, returnDur + 800); |
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}, scatterDur + spans.length * stagger + 400); |
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} |
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loopScatter(); |
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} |
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} |
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|
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function init() { |
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document.querySelectorAll('.wp-block-blockenberg-kinetic-text').forEach(initBlock); |
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} |
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|
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if (document.readyState === 'loading') { |
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document.addEventListener('DOMContentLoaded', init); |
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} else { |
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init(); |
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} |
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})(); |
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|
