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(function () { |
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'use strict'; |
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|
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// Chat Bubbles — animate messages into view on scroll |
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function initChatBubbles() { |
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var containers = document.querySelectorAll('.bkbg-chat-container'); |
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if (!containers.length) return; |
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|
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if (!('IntersectionObserver' in window)) return; |
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|
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var obs = new IntersectionObserver(function (entries) { |
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entries.forEach(function (entry) { |
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if (!entry.isIntersecting) return; |
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var messages = entry.target.querySelectorAll('.bkbg-chat-msg'); |
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messages.forEach(function (msg, idx) { |
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setTimeout(function () { |
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msg.style.opacity = '1'; |
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msg.style.transform = 'translateY(0)'; |
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}, idx * 80); |
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}); |
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obs.unobserve(entry.target); |
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}); |
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}, { threshold: 0.15 }); |
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|
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containers.forEach(function (container) { |
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var messages = container.querySelectorAll('.bkbg-chat-msg'); |
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messages.forEach(function (msg) { |
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msg.style.opacity = '0'; |
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msg.style.transform = 'translateY(16px)'; |
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msg.style.transition = 'opacity 0.35s ease, transform 0.35s ease'; |
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}); |
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obs.observe(container); |
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}); |
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} |
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|
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if (document.readyState === 'loading') { |
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document.addEventListener('DOMContentLoaded', initChatBubbles); |
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} else { |
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initChatBubbles(); |
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} |
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}()); |
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|
