你在 HTML5 播放器和功能方面做得很好checkScroll()
.
看来您在使用 YouTube JS 播放器时遇到了麻烦,如果您花时间阅读文档,您会发现 YouTube 播放器只是一个 iframe。
试试我做的这个例子:http://jsbin.com/cocatuta/15/edit?js,输出
所以基本上我只是替换:
var videos = document.getElementsByTagName("video"), fraction = 0.8;
这样 :
var videos = document.getElementsByTagName("iframe"), fraction = 0.8;
并添加两个功能playVideo
and pauseVideo
.
function playVideo() {
player.playVideo();
}
function pauseVideo() {
player.pauseVideo();
}
完整代码:
//play when video is visible
var videos = document.getElementsByTagName("iframe"), fraction = 0.8;
function checkScroll() {
for(var i = 0; i < videos.length; i++) {
var video = videos[i];
var x = 0,
y = 0,
w = video.width,
h = video.height,
r, //right
b, //bottom
visibleX, visibleY, visible,
parent;
parent = video;
while (parent && parent !== document.body) {
x += parent.offsetLeft;
y += parent.offsetTop;
parent = parent.offsetParent;
}
r = x + parseInt(w);
b = y + parseInt(h);
visibleX = Math.max(0, Math.min(w, window.pageXOffset + window.innerWidth - x, r - window.pageXOffset));
visibleY = Math.max(0, Math.min(h, window.pageYOffset + window.innerHeight - y, b - window.pageYOffset));
visible = visibleX * visibleY / (w * h);
if (visible > fraction) {
playVideo();
} else {
pauseVideo()
}
}
};
window.addEventListener('scroll', checkScroll, false);
window.addEventListener('resize', checkScroll, false);
//check at least once so you don't have to wait for scrolling for the video to start
window.addEventListener('load', checkScroll, false);
checkScroll();
希望有帮助!是的,阅读文档“甚至应该对你有帮助”(最终)