X-Git-Url: https://git.mdrn.pl/redakcja.git/blobdiff_plain/626c374dc3f412d481ebc56386ab7f6bdd05b5e9..27f3af0b6c08485f3b06b10458c35da5827cd09e:/project/static/js/jquery.lazyload.js?ds=inline diff --git a/project/static/js/jquery.lazyload.js b/project/static/js/jquery.lazyload.js index ea3de6ff..c15167bd 100644 --- a/project/static/js/jquery.lazyload.js +++ b/project/static/js/jquery.lazyload.js @@ -12,7 +12,7 @@ } var container = this; - container.data('lastScroll', -10000); + container.data('lazyload:lastCheckedScrollTop', -10000); function aboveViewport(container, element, threshold) { return $(container).offset().top >= $(element).offset().top + $(element).height() + threshold; @@ -23,8 +23,11 @@ } function checkScroll() { - if (Math.abs(container.scrollTop() - container.data('lastScroll')) > settings.scrollThreshold) { - container.data('lastScroll', container.scrollTop()); + if (container.data('lazyload:lastCheckedScrollTop') == undefined) { + return; + } + if (Math.abs(container.scrollTop() - container.data('lazyload:lastCheckedScrollTop')) > settings.scrollThreshold) { + container.data('lazyload:lastCheckedScrollTop', container.scrollTop()); $(pattern, container).each(function() { if (aboveViewport(container, this, settings.threshold)