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(function () { |
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'use strict'; |
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|
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/* Gradient section – IntersectionObserver content entrance */ |
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document.querySelectorAll('.bkbg-gs-wrapper').forEach(function (wrapper) { |
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var inner = wrapper.querySelector('.bkbg-gs-inner'); |
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if (!inner || !('IntersectionObserver' in window)) return; |
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|
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/* Animate content in when section enters viewport */ |
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var children = inner.children; |
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Array.prototype.forEach.call(children, function (child) { |
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child.style.opacity = '0'; |
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child.style.transform = 'translateY(22px)'; |
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child.style.transition = 'opacity 0.6s ease, transform 0.6s ease'; |
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}); |
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|
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var io = new IntersectionObserver(function (entries) { |
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entries.forEach(function (entry) { |
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if (!entry.isIntersecting) return; |
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Array.prototype.forEach.call(children, function (child, i) { |
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setTimeout(function () { |
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child.style.opacity = '1'; |
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child.style.transform = 'translateY(0)'; |
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}, i * 100); |
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}); |
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io.unobserve(wrapper); |
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}); |
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}, { threshold: 0.15 }); |
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|
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io.observe(wrapper); |
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}); |
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})(); |
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|
