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a simple userscript to make learning experience on Coursera better
// ==UserScript==
// @name betterCoursera
// @namespace http://tampermonkey.net/
// @version 0.1
// @description a simple userscript to make learning experience on Coursera better
// @include http://www.coursera.org/*
// @include https://www.coursera.org/*
// @grant none
// ==/UserScript==
var sz = 1
function resizeSub(size) {
//document.querySelector("head").append(`<style> ::cue{font-size: ${size}em;} </style>`)
var css = `video::-webkit-media-text-track-display {font-size: ${size}em;}`,
head = document.head || document.getElementsByTagName('head')[0],
style = document.createElement('style');
style.type = 'text/css';
if (style.styleSheet){
style.styleSheet.cssText = css;
}
else {
style.appendChild(document.createTextNode(css));
}
head.appendChild(style);
}
document.onkeypress = zx;
function zx(e){
var charCode = (typeof e.which == "number") ? e.which : e.keyCode
console.log(charCode);
if (charCode == 110){
var btn = document.querySelector('.rc-CaptureHighlightButton').firstChild
btn.click()
}
if (charCode == 91 && sz > 0){
sz -= 0.1
resizeSub(sz)
}
if (charCode == 93){
sz += 0.1
resizeSub(sz)
}
}
// n 110
// , 44 . 46 [ 91 ] 93
function autoHideControls() {
var controls, timeout;
function hideControls() {
timeout = setTimeout(function() {
controls = document.getElementsByClassName('rc-ControlBar')[0];
if (!controls) return;
controls.style.display = 'none';
}, 2000);
}
window.onmousemove = function() {
clearTimeout(timeout);
hideControls();
if (controls) controls.style.display = '';
}
hideControls();
}
window.addEventListener('load', autoHideControls, false);