<!DOCTYPE HTML >
<html >
<head >
<script >
function init() {
if (location.search == "" ) {
let bc1 = new BroadcastChannel("bc1" );
bc1.onmessage = function(e) {
if (e.data == "loadNext" ) {
location.href = location.href + "?page2" ;
} else if (e.data == "forward" ) {
bc1.close();
history.forward();
}
};
window.onpageshow = function() {
bc1.postMessage("pageshow" );
};
} else {
document.body .innerHTML = "" ;
let bc2 = new BroadcastChannel("bc2" );
bc2.onmessage = function(e) {
if (e.data == "back" ) {
history.back();
} else if (e.data == "statistics" ) {
bc2.postMessage({ currentTime: document.body .firstChild.currentTime,
duration: document.body .firstChild.duration });
bc2.close();
window.close();
}
}
window.onpageshow = function(e) {
bc2.postMessage({ event: "pageshow" , persisted: e.persisted});
if (!e.persisted) {
// The initial statistics is sent once we know the duration and
// have loaded all the data.
let mediaElement = document.body .firstChild;
mediaElement.onpause = function() {
mediaElement.onpause = null;
mediaElement.currentTime = 0;
mediaElement.onplay = function() {
setTimeout(function() {
bc2.postMessage({ currentTime: mediaElement.currentTime,
duration: mediaElement.duration });
}, 500);
}
mediaElement.play();
}
}
};
}
}
</script >
</head >
<body onload="init()" >
</body >
</html >
Messung V0.5 C=100 H=100 G=100
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