// ==UserScript==
// @name 163 Music Downloader 网易云音乐下载助手
// @author       Zszen John
// @namespace    https://www.jianshu.com/u/15893823363f
// @version 3.0
// @include /^https?://music\.163\.com/.*$/
// @require https://cdn.staticfile.org/jquery/3.3.1/jquery.min.js
// @require https://cdn.staticfile.org/downloadjs/1.4.8/download.min.js
// @compatible Chrome
// @compatible Safari
// @grant        none
// @description 用于在网页端直接下载网易云音乐, 增加大封面下载，增加了歌词下载, 修复有时候不出现按钮的问题
// @note        2020.07-29 v3.0 修正有时无法显示按钮问题
// ==/UserScript==
(function () {
'use strict';
// Your code here...
var plugin_name = "163MD"
var is_debug = 1;
if(is_debug) console.log([plugin_name,"init"]);
//is_debug = false;
var regexp_id = /https\:\/\/music\.163\.com\/#\/song\?id\=(\d+)/;
loop_check();
function loop_check(){
var iframe = $("#g_iframe");
if(is_debug) console.log([plugin_name,iframe]);
if(iframe){
if(is_debug) console.log([plugin_name,"run"]);
var url = geturl(getid());
if (window.location.href.search(regexp_id)==0){
if(is_debug) console.log([plugin_name,"true"]);
insertElem(url, iframe);
}
}else{
setTimeout(loop_check ,500);
}
//iframe.on('load', function () {
//});
}
function export_raw(name, data) {
var urlObject = window.URL || window.webkitURL || window;
var export_blob = new Blob([data]);
var save_link = document.createElementNS("http://www.w3.org/1999/xhtml", "a")
save_link.href = urlObject.createObjectURL(export_blob);
save_link.download = name;
fake_click(save_link);
}
function fake_click(obj) {
var ev = document.createEvent("MouseEvents");
ev.initMouseEvent(
"click", true, false, window, 0, 0, 0, 0, 0
, false, false, false, false, 0, null
);
obj.dispatchEvent(ev);
}
function getid() {
var id = regexp_id.exec(window.location.href)[1];
return id;
}
function geturl(id) {
var str1 = "http://music.163.com/song/media/outer/url?id=";
var str2 = ".mp3"
return str1 + id + str2;
}
function save_lyric(){
var part1 = $("iframe#g_iframe").contents().find("div.bd.bd-open")[0].innerText;
var part2 = $("iframe#g_iframe").contents().find("div#flag_more")[0].innerText;
var idx = part1.lastIndexOf("展开")
if(idx>=0){
part1 = part1.substr(0,part1.lastIndexOf("展开"))
part1 += "\n"+part2
}
export_raw("lyric.txt",part1)
}
function insertElem(url, iframe) {
//var title = $(document).attr("title");
//var titles = title.split(" - ");
var content_frame = $("#content-operation", document.getElementById('g_iframe').contentWindow.document.body)
if(is_debug) console.log([plugin_name,"content_frame=",content_frame]);
var album = $("#g_iframe").contents().find(".u-cover.u-cover-6.f-fl>img");
var name = getid();
var element = $('<a class="u-btn2 u-btn2-2 u-btni-addply f-fl 1" hidefocus="true" title="直接下载" target="_blank" href="'+url+'" download="'+name+'"><i><em class="ply"></em>直接下载</i></a>');
//var element = $('<a class="u-btn2 u-btn2-2 u-btni-addply f-fl 1" id="'+url+'" hidefocus="true" title="直接下载" target="_blank" href="javascript:"><i><em class="ply"></em>直接下载</i></a>');
//element.click(evt=>{
// dl(evt.target.id, getid()+'.mp3', 'mp3');
//   var title = $(document).attr("title");
//   var titles = title.split(" - ");
//    var exts = url.split(".");
//     export_raw(titles[0]+"."+exts[exts.length-1], url);
//alert([titles[0]+"."+exts[exts.length-1], url]);
//});
content_frame.append(element);
var element2 = $('<a class="u-btn2 u-btn2-2 u-btni-addply f-fl 2" hidefocus="true" title="下载封面" target="_blank" href="'+album.attr("data-src")+'"><i><em class="ply"></em>下载封面</i></a>');
content_frame.append(element2);
var el2img = $("<img src='"+album.attr("data-src")+"' style='width:30px;'>");
//el2img.src = album.attr("data-src");
content_frame.append(el2img);
//alert($("div.bd.bd-open").length)
var element3 = $('<a class="u-btn2 u-btn2-2 u-btni-addply f-fl 3" hidefocus="true" title="下载歌词"><i><em class="ply"></em>下载歌词</i></a>');
content_frame.append(element3);
element3.on("click",save_lyric)
}
function dl(url, strFileName, strMimeType) {
var xmlHttp = null;
if (window.ActiveXObject) {
// IE6, IE5 浏览器执行代码
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
} else if (window.XMLHttpRequest) {
// IE7+, Firefox, Chrome, Opera, Safari 浏览器执行代码
xmlHttp = new XMLHttpRequest();
}
//2.如果实例化成功，就调用open（）方法：
if (xmlHttp != null) {
xmlHttp.open("get", url, true);
xmlHttp.responseType = 'blob';//关键
xmlHttp.send();
xmlHttp.onreadystatechange = doResult; //设置回调函数
}
function doResult() {
if (xmlHttp.readyState == 4) { //4表示执行完成
if (xmlHttp.status == 200) { //200表示执行成功
download(xmlHttp.response, strFileName, strMimeType);
}
}
}
}
})();