Add download widget

This commit is contained in:
Omar Roth 2019-01-23 19:05:24 -06:00
parent 15efac520e
commit fb535ad6bb
3 changed files with 96 additions and 0 deletions

View file

@ -50,3 +50,55 @@ function hide_youtube_replies(target) {
target.innerHTML = "Show replies";
target.setAttribute("onclick", "show_youtube_replies(this)");
}
function download_video(title) {
var children = document.getElementById("download_widget").children;
var progress = document.getElementById("download-progress");
var url = "";
document.getElementById("progress-container").style.display = "";
for (i = 0; i < children.length; i++) {
if (children[i].selected) {
url = children[i].getAttribute("data-url");
}
}
url = "/videoplayback" + url.split("/videoplayback")[1];
var xhr = new XMLHttpRequest();
xhr.open("GET", url);
xhr.responseType = "arraybuffer";
xhr.onprogress = function(event) {
if (event.lengthComputable) {
progress.style.width = "" + (event.loaded / event.total)*100 + "%";
}
};
xhr.onload = function(event) {
if (event.currentTarget.status != 200) {
console.log("Downloading " + title + " failed.")
return;
}
var data = new Blob([xhr.response], {'type' : 'video/mp4'});
var videoFile = window.URL.createObjectURL(data);
var link = document.createElement('a');
link.href = videoFile;
link.setAttribute('download', title);
document.body.appendChild(link);
window.requestAnimationFrame(function() {
var event = new MouseEvent('click');
link.dispatchEvent(event);
document.body.removeChild(link);
});
document.getElementById("progress-container").style.display = "none";
progress.style.width = "0%";
};
xhr.send(null);
}