Automatically plays sound files on ankiweb.net
// ==UserScript==
// @name Ankiweb Autoplay
// @namespace http://whynot.moe/
// @version 0.3.7
// @description Automatically plays sound files on ankiweb.net
// @author Rainer
// @license GPL version 3 or any later version; http://www.gnu.org/copyleft/gpl.html
// @match https://ankiweb.net/study/
// @match https://ankiuser.net/study/
// @grant none
// ==/UserScript==
(function() {
window.playing = false;
window.playqueue = [];
genoptions = {
'childList': true,
'subtree': true
};
audiooptions = {
'attributes': true,
'attributeFilter': ['src'],
'subtree': false
};
window.replay = function(e){
var isR = e.key? (e.key == 'r' || e.key == 'R') : e.keyCode == 67;
if(isR){
playqueue = [].slice.call(document.getElementsByTagName('audio'));
ff();
this.removeEventListener(e.type, arguments.callee);
}
};
window.ff = function(e){
if(playqueue.length){
el = playqueue.shift();
el.play();
el.addEventListener('ended', ff);
} else {
playing = false;
bs = document.getElementsByClassName('btn-primary');
btn = bs[bs.length - 1];
if(window.getComputedStyle(btn).visibility == "hidden"){
btn = bs[bs.length - 2];
}
btn.focus();
document.removeEventListener('keydown', replay);
document.addEventListener('keydown', replay);
}
};
window.doplay = function(t){
if(playing){
playqueue.push(t);
} else {
playing = true;
t.play();
t.addEventListener('ended', ff);
}
};
window.audiocallback = function(mutations){
mutations.map(function(m){
t = m.target;
if((!t.srcdone) && t.src){
t.srcdone = true;
doplay(t);
}
});
};
ma = new MutationObserver(audiocallback);
window.gencallback = function(allmutations) {
document.removeEventListener('keydown', replay);
playing = false;
playqueue = [];
allmutations.map( function(mr) {
n = mr.target;
[].forEach.call(n.getElementsByTagName('audio'), function(el){
ma.observe(el, audiooptions);
});
});
};
mo = new MutationObserver(gencallback);
mo.observe(document.body, genoptions);
})();