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(function () { |
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'use strict'; |
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|
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var PRESETS = [ |
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{ label:'Purple Dream', stops:'#6c3fb5 0%,#06b6d4 100%', type:'linear', angle:135 }, |
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{ label:'Sunset', stops:'#f97316 0%,#ef4444 50%,#a855f7 100%', type:'linear', angle:135 }, |
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{ label:'Ocean', stops:'#0ea5e9 0%,#10b981 100%', type:'linear', angle:135 }, |
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{ label:'Midnight', stops:'#1e1b4b 0%,#6c3fb5 50%,#0ea5e9 100%', type:'linear', angle:225 }, |
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{ label:'Peach', stops:'#f9a8d4 0%,#fed7aa 100%', type:'linear', angle:90 }, |
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{ label:'Radial Burst', stops:'#fde68a 0%,#f97316 60%,#ef4444 100%', type:'radial', angle:135 }, |
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{ label:'Forest', stops:'#064e3b 0%,#10b981 100%', type:'linear', angle:135 }, |
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{ label:'Rose Gold', stops:'#fda4af 0%,#fb7185 40%,#f43f5e 100%', type:'linear', angle:135 } |
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]; |
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|
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function parseStops(str) { |
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return (str || '#6c3fb5 0%,#06b6d4 100%').split(',').map(function(s) { |
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s = s.trim(); |
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var parts = s.match(/^(#[\w]+|rgba?\([^)]+\))\s+(\d+%?)$/); |
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if (parts) return { color: parts[1], pos: parts[2] }; |
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return { color: s, pos: '' }; |
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}); |
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} |
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|
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function buildGradient(type, angle, stops) { |
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var stopStr = stops.map(function(s) { return s.color + (s.pos ? ' ' + s.pos : ''); }).join(', '); |
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if (type === 'radial') return 'radial-gradient(circle, ' + stopStr + ')'; |
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if (type === 'conic') return 'conic-gradient(from ' + angle + 'deg, ' + stopStr + ')'; |
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return 'linear-gradient(' + angle + 'deg, ' + stopStr + ')'; |
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} |
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|
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function initGradientGenerator(app) { |
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var opts; |
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try { opts = JSON.parse(app.getAttribute('data-opts') || '{}'); } catch(e) { opts = {}; } |
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|
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function typoCssVarsForEl(typo, prefix, el) { |
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if (!typo || typeof typo !== 'object') return; |
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var map = { |
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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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Object.keys(map).forEach(function(k) { |
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if (typo[k] !== undefined && typo[k] !== '') { |
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var v = typo[k]; |
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if (['sizeDesktop','sizeTablet','sizeMobile'].indexOf(k) !== -1) v = v + (typo.sizeUnit || 'px'); |
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else if (['lineHeightDesktop','lineHeightTablet','lineHeightMobile'].indexOf(k) !== -1) v = v + (typo.lineHeightUnit || ''); |
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else if (['letterSpacingDesktop','letterSpacingTablet','letterSpacingMobile'].indexOf(k) !== -1) v = v + (typo.letterSpacingUnit || 'px'); |
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else if (['wordSpacingDesktop','wordSpacingTablet','wordSpacingMobile'].indexOf(k) !== -1) v = v + (typo.wordSpacingUnit || 'px'); |
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el.style.setProperty(prefix + map[k], String(v)); |
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} |
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}); |
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} |
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|
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var accent = opts.accentColor || '#6c3fb5'; |
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var cardBg = opts.cardBg || '#ffffff'; |
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var controlsBg = opts.controlsBg || '#f9fafb'; |
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var controlsBorder= opts.controlsBorder || '#e5e7eb'; |
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var cssBg = opts.cssBg || '#1e1b4b'; |
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var cssColor = opts.cssColor || '#c4b5fd'; |
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var copyBg = opts.copyBg || accent; |
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var copyColor = opts.copyColor || '#ffffff'; |
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var labelColor = opts.labelColor || '#374151'; |
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var titleColor = opts.titleColor || ''; |
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var subtitleColor = opts.subtitleColor || ''; |
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var sectionBg = opts.sectionBg || ''; |
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|
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var paddingTop = (opts.paddingTop != null ? opts.paddingTop : 60) + 'px'; |
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var paddingBottom = (opts.paddingBottom != null ? opts.paddingBottom : 60) + 'px'; |
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var maxWidth = (opts.maxWidth || 600) + 'px'; |
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var cardRadius = (opts.cardRadius || 16) + 'px'; |
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var previewRadius = (opts.previewRadius || 12) + 'px'; |
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var previewHeight = (opts.previewHeight || 200) + 'px'; |
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var titleSize = (opts.titleSize || 28) + 'px'; |
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|
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var showPresets = opts.showPresets !== false; |
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var showCssOutput = opts.showCssOutput !== false; |
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var showTitle = opts.showTitle && opts.title; |
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var showSubtitle = opts.showSubtitle && opts.subtitle; |
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|
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// State |
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var state = { |
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type: opts.defaultType || 'linear', |
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angle: opts.defaultAngle != null ? opts.defaultAngle : 135, |
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stops: parseStops(opts.defaultStops) |
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}; |
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|
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// Build initial HTML |
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app.style.paddingTop = paddingTop; |
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app.style.paddingBottom = paddingBottom; |
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if (sectionBg) app.style.background = sectionBg; |
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|
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typoCssVarsForEl(opts.typoTitle, '--bkbg-gg-tt-', app); |
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typoCssVarsForEl(opts.typoBody, '--bkbg-gg-bd-', app); |
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|
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var wrap = document.createElement('div'); |
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wrap.className = 'bkbg-gg-wrap'; |
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wrap.style.cssText = 'background:' + cardBg + ';border-radius:' + cardRadius + ';max-width:' + maxWidth; |
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app.appendChild(wrap); |
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|
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// Header |
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if (showTitle || showSubtitle) { |
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var header = document.createElement('div'); |
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header.className = 'bkbg-gg-header'; |
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if (showTitle) { |
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var h = document.createElement('div'); |
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h.className = 'bkbg-gg-title'; |
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h.style.cssText = (titleColor ? 'color:' + titleColor : ''); |
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h.textContent = opts.title; |
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header.appendChild(h); |
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} |
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if (showSubtitle) { |
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var sub = document.createElement('div'); |
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sub.className = 'bkbg-gg-subtitle'; |
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if (subtitleColor) sub.style.color = subtitleColor; |
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sub.textContent = opts.subtitle; |
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header.appendChild(sub); |
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} |
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wrap.appendChild(header); |
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} |
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|
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// Preview swatch |
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var preview = document.createElement('div'); |
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preview.className = 'bkbg-gg-preview'; |
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preview.style.height = previewHeight; |
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preview.style.borderRadius = previewRadius; |
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wrap.appendChild(preview); |
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|
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// Controls box |
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var controls = document.createElement('div'); |
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controls.className = 'bkbg-gg-controls'; |
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controls.style.cssText = 'background:' + controlsBg + ';border:1.5px solid ' + controlsBorder; |
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wrap.appendChild(controls); |
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|
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// Type + angle row |
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var typeRow = document.createElement('div'); |
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typeRow.className = 'bkbg-gg-type-row'; |
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controls.appendChild(typeRow); |
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|
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var typeGroup = document.createElement('div'); |
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var typeLabel = document.createElement('label'); |
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typeLabel.className = 'bkbg-gg-label'; |
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typeLabel.style.color = labelColor; |
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typeLabel.textContent = 'Type'; |
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var typeSelect = document.createElement('select'); |
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typeSelect.className = 'bkbg-gg-select'; |
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typeSelect.style.cssText = 'border:1.5px solid ' + controlsBorder; |
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['linear','radial','conic'].forEach(function(t) { |
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var o = document.createElement('option'); |
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o.value = t; o.textContent = t.charAt(0).toUpperCase() + t.slice(1); |
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typeSelect.appendChild(o); |
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}); |
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typeSelect.value = state.type; |
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typeGroup.appendChild(typeLabel); |
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typeGroup.appendChild(typeSelect); |
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typeRow.appendChild(typeGroup); |
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|
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var angleGroup = document.createElement('div'); |
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angleGroup.id = 'bkbg-gg-angle-group'; |
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var angleLabel = document.createElement('label'); |
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angleLabel.className = 'bkbg-gg-label'; |
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angleLabel.style.color = labelColor; |
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angleLabel.textContent = 'Angle'; |
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var angleRow = document.createElement('div'); |
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angleRow.className = 'bkbg-gg-angle-row'; |
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var angleSlider = document.createElement('input'); |
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angleSlider.type = 'range'; angleSlider.min = 0; angleSlider.max = 360; angleSlider.step = 5; |
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angleSlider.value = state.angle; |
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var angleVal = document.createElement('span'); |
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angleVal.className = 'bkbg-gg-angle-val'; |
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angleVal.textContent = state.angle + '°'; |
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angleRow.appendChild(angleSlider); |
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angleRow.appendChild(angleVal); |
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angleGroup.appendChild(angleLabel); |
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angleGroup.appendChild(angleRow); |
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typeRow.appendChild(angleGroup); |
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if (state.type === 'radial') angleGroup.style.display = 'none'; |
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|
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// Stops container |
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var stopsContainer = document.createElement('div'); |
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stopsContainer.className = 'bkbg-gg-stops'; |
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controls.appendChild(stopsContainer); |
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|
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function createStopRow(idx) { |
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var row = document.createElement('div'); |
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row.className = 'bkbg-gg-stop-row'; |
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row.dataset.idx = idx; |
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|
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var swatch = document.createElement('input'); |
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swatch.type = 'color'; |
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swatch.className = 'bkbg-gg-color-swatch'; |
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swatch.style.cssText = 'background:' + state.stops[idx].color; |
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swatch.value = state.stops[idx].color; |
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|
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var colorText = document.createElement('input'); |
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colorText.type = 'text'; |
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colorText.className = 'bkbg-gg-input-text bkbg-gg-input-color'; |
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colorText.style.cssText = 'border:1.5px solid ' + controlsBorder; |
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colorText.value = state.stops[idx].color; |
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colorText.placeholder = '#rrggbb'; |
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|
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var posInput = document.createElement('input'); |
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posInput.type = 'text'; |
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posInput.className = 'bkbg-gg-input-text bkbg-gg-input-pos'; |
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posInput.style.cssText = 'border:1.5px solid ' + controlsBorder; |
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posInput.value = state.stops[idx].pos; |
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posInput.placeholder = '0%'; |
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|
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var removeBtn = document.createElement('button'); |
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removeBtn.className = 'bkbg-gg-btn-remove'; |
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removeBtn.textContent = '×'; |
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removeBtn.disabled = state.stops.length <= 2; |
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|
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swatch.addEventListener('input', function() { |
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state.stops[idx].color = swatch.value; |
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colorText.value = swatch.value; |
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refresh(); |
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}); |
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colorText.addEventListener('input', function() { |
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state.stops[idx].color = colorText.value; |
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if (/^#[0-9a-fA-F]{6}$/.test(colorText.value)) swatch.value = colorText.value; |
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refresh(); |
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}); |
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posInput.addEventListener('input', function() { |
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state.stops[idx].pos = posInput.value; |
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refresh(); |
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}); |
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removeBtn.addEventListener('click', function() { |
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if (state.stops.length <= 2) return; |
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state.stops.splice(idx, 1); |
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renderStops(); |
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refresh(); |
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}); |
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|
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row.appendChild(swatch); |
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row.appendChild(colorText); |
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row.appendChild(posInput); |
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row.appendChild(removeBtn); |
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return row; |
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} |
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|
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function renderStops() { |
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stopsContainer.innerHTML = ''; |
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state.stops.forEach(function(_, i) { |
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stopsContainer.appendChild(createStopRow(i)); |
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}); |
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} |
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renderStops(); |
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|
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// Add stop button |
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var addBtn = document.createElement('button'); |
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addBtn.className = 'bkbg-gg-btn-add'; |
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addBtn.style.cssText = 'color:' + accent + ';border-color:' + controlsBorder; |
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addBtn.textContent = '+ Add Color Stop'; |
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addBtn.addEventListener('click', function() { |
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if (state.stops.length >= 5) return; |
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state.stops.push({ color: '#ffffff', pos: '100%' }); |
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renderStops(); |
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refresh(); |
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}); |
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controls.appendChild(addBtn); |
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|
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// Presets |
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if (showPresets) { |
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var presetsSection = document.createElement('div'); |
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presetsSection.className = 'bkbg-gg-presets-section'; |
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var presetsHdr = document.createElement('div'); |
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presetsHdr.className = 'bkbg-gg-presets-label'; |
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presetsHdr.style.color = labelColor; |
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presetsHdr.textContent = 'Presets'; |
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presetsSection.appendChild(presetsHdr); |
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var presetsGrid = document.createElement('div'); |
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presetsGrid.className = 'bkbg-gg-presets-grid'; |
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PRESETS.forEach(function(p) { |
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var btn = document.createElement('button'); |
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btn.className = 'bkbg-gg-preset-btn'; |
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var sw = document.createElement('div'); |
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sw.className = 'bkbg-gg-preset-swatch'; |
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sw.style.background = buildGradient(p.type, p.angle, parseStops(p.stops)); |
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var nm = document.createElement('span'); |
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nm.className = 'bkbg-gg-preset-name'; |
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nm.textContent = p.label; |
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btn.appendChild(sw); |
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btn.appendChild(nm); |
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btn.addEventListener('click', function() { |
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state.stops = parseStops(p.stops); |
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state.type = p.type; |
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state.angle = p.angle; |
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typeSelect.value = p.type; |
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angleSlider.value = p.angle; |
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angleVal.textContent = p.angle + '°'; |
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angleGroup.style.display = (p.type === 'radial') ? 'none' : ''; |
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renderStops(); |
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refresh(); |
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}); |
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presetsGrid.appendChild(btn); |
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}); |
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presetsSection.appendChild(presetsGrid); |
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wrap.appendChild(presetsSection); |
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} |
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|
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// CSS output |
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var cssCode, copyBtn; |
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if (showCssOutput) { |
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var cssSection = document.createElement('div'); |
| 308 |
cssSection.className = 'bkbg-gg-css-section'; |
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var cssBlock = document.createElement('div'); |
| 310 |
cssBlock.className = 'bkbg-gg-css-block'; |
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cssBlock.style.cssText = 'background:' + cssBg + ';color:' + cssColor; |
| 312 |
cssCode = document.createElement('span'); |
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cssBlock.appendChild(cssCode); |
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copyBtn = document.createElement('button'); |
| 315 |
copyBtn.className = 'bkbg-gg-copy-btn'; |
| 316 |
copyBtn.style.cssText = 'background:' + copyBg + ';color:' + copyColor; |
| 317 |
copyBtn.textContent = 'Copy CSS'; |
| 318 |
copyBtn.addEventListener('click', function() { |
| 319 |
var text = 'background: ' + buildGradient(state.type, state.angle, state.stops) + ';'; |
| 320 |
try { |
| 321 |
navigator.clipboard.writeText(text).then(function() { |
| 322 |
copyBtn.textContent = '✓ Copied!'; |
| 323 |
copyBtn.style.background = '#10b981'; |
| 324 |
setTimeout(function() { copyBtn.textContent = 'Copy CSS'; copyBtn.style.background = copyBg; }, 1500); |
| 325 |
}); |
| 326 |
} catch(e) {} |
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}); |
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cssSection.appendChild(cssBlock); |
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cssSection.appendChild(copyBtn); |
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wrap.appendChild(cssSection); |
| 331 |
} |
| 332 |
|
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// Wire type and angle controls |
| 334 |
typeSelect.addEventListener('change', function() { |
| 335 |
state.type = typeSelect.value; |
| 336 |
angleGroup.style.display = (state.type === 'radial') ? 'none' : ''; |
| 337 |
refresh(); |
| 338 |
}); |
| 339 |
angleSlider.addEventListener('input', function() { |
| 340 |
state.angle = parseInt(angleSlider.value); |
| 341 |
angleVal.textContent = state.angle + '°'; |
| 342 |
refresh(); |
| 343 |
}); |
| 344 |
|
| 345 |
function refresh() { |
| 346 |
var g = buildGradient(state.type, state.angle, state.stops); |
| 347 |
preview.style.background = g; |
| 348 |
if (cssCode) cssCode.textContent = 'background: ' + g + ';'; |
| 349 |
} |
| 350 |
|
| 351 |
refresh(); |
| 352 |
} |
| 353 |
|
| 354 |
document.querySelectorAll('.bkbg-gg-app').forEach(initGradientGenerator); |
| 355 |
})(); |
| 356 |
|
