45 lines
1.6 KiB
JavaScript
45 lines
1.6 KiB
JavaScript
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document.addEventListener('DOMContentLoaded', function() {
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var lazyGraphs = [].slice.call(document.querySelectorAll('[lazy]'));
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var active = false;
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var lazyLoad = function() {
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if (active === false) {
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active = true;
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setTimeout(function() {
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lazyGraphs.forEach(function(lazyGraph) {
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if (
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lazyGraph.getBoundingClientRect().top <= window.innerHeight &&
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lazyGraph.getBoundingClientRect().bottom >= 0 &&
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getComputedStyle(lazyGraph).display !== 'none'
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) {
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lazyGraph.data = lazyGraph.getAttribute('lazy');
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lazyGraph.removeAttribute('lazy');
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lazyGraphs = lazyGraphs.filter(function(image) { return image !== lazyGraph});
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if (lazyGraphs.length === 0) {
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document.removeEventListener('scroll', lazyLoad);
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window.removeEventListener('resize', lazyLoad);
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window.removeEventListener('orientationchange', lazyLoad);
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}
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}
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});
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active = false;
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}, 200);
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}
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};
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// initial load
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lazyLoad();
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var container = document.querySelector('.container-fluid.modules');
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if (container) {
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container.addEventListener('scroll', lazyLoad);
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window.addEventListener('resize', lazyLoad);
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window.addEventListener('orientationchange', lazyLoad);
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}
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});
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