// ==UserScript==
// @name          icourse Downloader
// @namespace
// @description   get urls of video courses and copy to clipboard
// @include       https://www.icourse163.org/learn/*
// @version       0.9.0
// @version 0.0.1.20180405103144
// @namespace https://greasyfork.org/users/38547
// ==/UserScript==
(function () {
'use strict';
create_button();
function btn_onclick(){
var img_addr = document.getElementsByTagName("source")[0].src;
if (img_addr){
var patt1 = /http.*(?=\?)/;
var res = img_addr.match(patt1);
var obj = document.getElementById("down_video_url");
obj.value = res;
obj.type ="";
obj.select();
document.execCommand('copy');
obj.type = "hidden";
alert('复制完成！');
}
else {
alert("none!");
}
}
function create_button(){
var ul_tag = document.getElementsByClassName('f-cb')[2];
var btn = document.createElement("div");
var t = document.createTextNode("Download");
btn.appendChild(t);
btn.style="background-color: green; border: 2px solid green; border-radius: 2px; color: white; padding: 0px 15px; font-size: 14px; cursor: pointer; height: 21px; margin-left: 7px; margin-top: opx; line-height: 21px; font-weight: 500; display: inline-block;";
btn.setAttribute('id','down_video_btn');
btn.onclick = btn_onclick;
ul_tag.appendChild(btn);
//create input form
var input1 = document.createElement("input");
input1.id ="down_video_url";
input1.value="";
input1.type="hidden";
ul_tag.appendChild(input1);
}
})();