Is there anyway to autoplay a HTML5 video only when the user has the video (or a certain percentage of the video) in the browser viewport?
Let's say our browser window W
currently scrolled to y-position scrollTop
and scrollBottom
Our video will NOT be played when its position is at V1
or V2
as below snapshot.
$(document).ready(function() {
// Get media - with autoplay disabled (audio or video)
var media = $('video').not("[autoplay='autoplay']");
var tolerancePixel = 40;
function checkMedia(){
// Get current browser top and bottom
var scrollTop = $(window).scrollTop() + tolerancePixel;
var scrollBottom = $(window).scrollTop() + $(window).height() - tolerancePixel;
media.each(function(index, el) {
var yTopMedia = $(this).offset().top;
var yBottomMedia = $(this).height() + yTopMedia;
if(scrollTop < yBottomMedia && scrollBottom > yTopMedia){ //view explaination in `In brief` section above
$(this).get(0).play();
} else {
$(this).get(0).pause();
}
});
//}
}
$(document).on('scroll', checkMedia);
});