一个脚本的修改
先说一下，我不懂js，只是一个普通用户，由于个人原因需要经常在youtube上面大量下载视频，为了方便下载了一个greasemonkey（firefox的一个插件）脚本，可以在youtube页面上显示下载链接，如图自己想修改这个脚本让他能显示3gp的连接，以及在下载链接处显示视频标题而不是类似于“[OK]....”
这样就能用flashget的“智能命名”功能一键获得视频名称并下载，不用再选中，复制，粘贴视频名称了，可以节省大量时间
经过几个小时摸索，3gp的问题解决了，显示标题的问题实在没可能……
所以我想请问各位如何在下载链接处显示视频标题而不是类似于“[OK]....”的文字？？？
比如图中那个视频网址是
http://www.
标题是
Justin Timberlake In-Studio Introduction
如果这个实现起来比较困难，直接显示网页的标题也行，即网页源代码中的<title>部分，YouTube - Justin Timberlake In-Studio Introduction
您的几分钟，或许能让我节省几十个小时。谢谢各位了！！！
原始代码如下
程序代码：
// ==UserScript==
// @name YouTube HD Suite
// @namespace http:// @description Always watching or downloading the highest quality format (HD or MP4) in YouTube Page
// @include http://*.*
// @include http://*
// ==/UserScript==
(function() {
var w = (typeof(unsafeWindow) != 'undefined') ? unsafeWindow : window;
var d = w.document;
var l = w.location;
var s = w.swfArgs;
/**
* Redirect Higher Quality URL
*/
function redirect() {
var map = decodeURIComponent(s['fmt_url_map']);
if ( map.indexOf('22|') > -1 ) {
l.replace(l.href + '&fmt=22');
}
else if ( map.indexOf('35|') > -1 ) {
l.replace(l.href + '&fmt=35');
}
else {
l.replace(l.href + '&fmt=18');
}
}
/**
* create Menu
*/
function createMenu() {
if ( !d.getElementById('masthead-nav-main') ) return;
var a = d.createElement('a');
a.setAttribute('onmouseover','document.getElementById(\'suite_menu\').style.display=\'block\';');
a.setAttribute('onmouseout','document.getElementById(\'suite_menu\').style.display=\'none\';');
a.setAttribute('id','suite_button');
a.style.color = '#F00';
a.style.display = 'inline-block';
a.innerHTML = 'Suite';
d.getElementById('masthead-nav-main').appendChild(a);
// menu position
var menuW = a.offsetWidth;
var menuH = a.offsetHeight;
var menuT = 0, menuL = 0;
do {
menuT += a.offsetTop || 0;
menuL += a.offsetLeft || 0;
a = a.offsetParent;
} while (a);
//w.console.log(menuW+'/'+menuH+'/'+menuT+'/'+menuL);
var div = d.createElement('div');
div.setAttribute('id','suite_menu');
div.setAttribute('onmouseover','this.style.display=\'block\';');
div.setAttribute('onmouseout','this.style.display=\'none\';');
div.style.display = 'none';
div.style.margin = 0;
div.style.padding = '7px';
div.style.background = '#EEE';
div.style.border = '3px solid #999';
div.style.position = 'absolute';
div.style.top = (menuT+menuH)+'px';
div.style.left = (menuL)+'px';
div.style.zIndex = '99';
div.innerHTML
= '<b>YouTube HD Suite</b> | '
+ '<a href="javascript:visualize();">[ Visualize ]</a>';
d.getElementsByTagName('body')[0].appendChild(div);
}
/**
* create XmlHttpRequest
*/
function createXHR() {
if ( w.ActiveXObject ) {
try {
return new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
try {
return new ActiveXObject("Microsoft.XMLHTTP");
} catch (e2) {
return null;
}
}
} else if ( w.XMLHttpRequest ) {
return new XMLHttpRequest();
} else {
return null;
}
}
/**
* check URL
*/
function checkURL(video_id) {
var url = '';
if ( video_id.match(/.+==$/) ) {
url = 'http://'+l.host+'/cthru?key='+video_id;
} else {
url = 'http://'+l.host+'/watch' + '?v='+video_id;
}
var XHR = createXHR();
XHR.open( 'GET', url, true );
XHR.onreadystatechange = function() {
if (XHR.readyState==4) {
if ( match = XHR.responseText.match(/var swfArgs = ({.*})/) ) {
var json = eval('('+RegExp.$1+')');
var map = decodeURIComponent(json['fmt_url_map']);
var s = d.getElementsByTagName('strong');
for ( var i=0; i<s.length; i++ ) {
if ( !s[i].innerHTML && s[i].getAttribute('class') == json['video_id'] ) {
link = d.createElement('a');
link.style.color = '#fff';
link.style.font = 'bold 10px/10px Arial';
link.style.padding = '1px';
if ( map.indexOf('22|') > -1 ) {
link.style.backgroundColor = '#f00';
link.href = '/get_video?fmt=22&video_id='+json['video_id']+'&t='+json['t'];
link.innerHTML = 'HD';
if ( s[i].nextSibling.href && !s[i].nextSibling.href.match(/#$/) ) {
s[i].nextSibling.href += "&fmt=22";
}
}
else if ( map.indexOf('35|') > -1 ) {
link.style.backgroundColor = '#6f6';
link.href = '/get_video?fmt=35&video_id='+json['video_id']+'&t='+json['t'];
link.innerHTML = 'HQ';
if ( s[i].nextSibling.href && !s[i].nextSibling.href.match(/#$/) ) {
s[i].nextSibling.href += "&fmt=35";
}
}
else {
link.style.backgroundColor = '#666';
link.href = '/get_video?fmt=18&video_id='+json['video_id']+'&t='+json['t'];
link.innerHTML = 'SD';
if ( s[i].nextSibling.href && !s[i].nextSibling.href.match(/#$/) ) {
s[i].nextSibling.href += "&fmt=18";
}
}
s[i].appendChild(link);
}
}
}
}
}
XHR.send('');
}
/**
* Add HD or MP4 on each links in YouTube List Page
*/
w.visualize = function() {
var a = d.getElementsByTagName('a');
for ( var i=0; i<a.length; i++ ) {
match = '';
if ( a[i].innerHTML.match(/<img/i) ) continue; // Skip Image Link
if ( a[i].getAttribute('vid') ) continue; // Skip checked Link
if ( a[i].getAttribute('class') == 'yt-button' ) continue; // Skip Button Link
// functional links
if ( a[i].href.match(/#$/) ) {
if ( a[i].getAttribute('onclick') &&
( a[i].getAttribute('onclick').match(/^onPlayVideos\(\['([a-zA-Z0-9_-]*)'\]\)/) ||
a[i].getAttribute('onclick').match(/^onPlayVideos\('\/watch\?v=([a-zA-Z0-9_-]*)'\)/) )
) {
match = RegExp.$1;
a[i].setAttribute('vid',1);
strong = d.createElement('strong');
strong.setAttribute('class',match);
a[i].parentNode.insertBefore(strong, a[i]);
a[i].style.display = 'inline';
} else {
continue;
}
}
// normal 'watch' and 'play list'
else if ( a[i].href.match(/watch\?v=([a-zA-Z0-9_-]*)/) || a[i].href.match(/view_play_list\?.+&v=([a-zA-Z0-9_-]*)/) ) {
match = RegExp.$1;
a[i].setAttribute('vid',1);
strong = d.createElement('strong');
strong.setAttribute('class',match);
a[i].parentNode.insertBefore(strong, a[i]);
}
// new channel page
else if ( !a[i].href && a[i].getAttribute('onclick') && a[i].getAttribute('onclick').match(/playnav.playVideo\(\'.+\',\'[0-9]\',\'([a-zA-Z0-9_-]*)\'\);/) ) {
match = RegExp.$1;
a[i].setAttribute('vid',1);
strong = d.createElement('strong');
strong.setAttribute('class',match);
a[i].parentNode.insertBefore(strong, a[i]);
}
}
var s = d.getElementsByTagName('strong');
var c = '';
for ( var i=0; i<s.length; i++ ) {
if ( !s[i].innerHTML && s[i].getAttribute('class') && c.indexOf(s[i].getAttribute('class')) < 0 ) {
c += ' ' + s[i].getAttribute('class');
checkURL( s[i].getAttribute('class') );
}
}
}
/**
* check HD(fmt=22)
*/
function checkHD() {
var url = 'http://'+l.host+'/watch' + '?v='+s['video_id'];
var XHR = createXHR();
XHR.open( 'GET', url, true );
XHR.onreadystatechange = function() {
if (XHR.readyState==4) {
if ( match = XHR.responseText.match(/var swfArgs = ({.*})/) ) {
var block = d.getElementById('check_fmt_22');
block.innerHTML = '';
var json = eval('('+RegExp.$1+')');
var map = decodeURIComponent(json['fmt_url_map']);
if ( map.indexOf('22|') > -1 ) {
block.innerHTML
+= '<a href="'+makeDownloadURL(22)+'">[OK] DL fmt=22 ( HD /MP4/H.264/AAC)</a>';
} else {
block.innerHTML
+= '[NG] DL fmt=22 ( HD /MP4/H.264/AAC)';
}
}
}
}
XHR.send('');
}
/**
* check HQ(fmt=35)
*/
function checkHQ() {
var url = 'http://'+l.host+'/watch' + '?fmt=35&v='+s['video_id'];
var XHR = createXHR();
XHR.open( 'GET', url, true );
XHR.onreadystatechange = function() {
if (XHR.readyState==4) {
if ( match = XHR.responseText.match(/var swfArgs = ({.*})/) ) {
var block = d.getElementById('check_fmt_35');
block.innerHTML = '';
var json = eval('('+RegExp.$1+')');
var map = decodeURIComponent(json['fmt_url_map']);
if ( map.indexOf('35|') > -1 ) {
block.innerHTML
+= '<a href="'+makeDownloadURL(35)+'">[OK] DL fmt=35 ( HQ /FLV/H.264/AAC)</a>';
} else {
block.innerHTML
+= '[NG] DL fmt=35 ( HQ /FLV/H.264/AAC)';
}
}
}
}
XHR.send('');
}
/**
* Make Download URL
*/
function makeDownloadURL(num) {
var u = 'http://'+l.host+'/get_video' + '?video_id='+s['video_id'] + '&t=' + s['t'];
if ( num ) {
u += '&fmt='+num;
}
return u;
}
/**
* Add Customized Embed Link
*/
function showCopyLink() {
var map = decodeURIComponent(s['fmt_url_map']);
if( map.indexOf('22|') > -1 ) {
i = 22;
m = 'High Definition';
}
else if( map.indexOf('35|') > -1 ) {
i = 35;
m = 'High Quality FLV';
} else {
i = 18;
m = 'for iPod';
}
url_command
= 'prompt('
+ '\'Copy & Past the '+m+' URL\','
+ 'document.getElementById(\'watch-url-field\').value+\'&fmt='+i+'\''
+ ');'
+ 'void(0);';
embed_command
= 'prompt('
+ '\'Copy & Past the '+m+' embed tag\','
+ 'document.getElementById(\'embed_code\').value.replace(/(http:\\/\\/[a-zA-Z0_-]*\\.youtube\\.com\\/[-_.a-zA-Z0-9\\/?&=%]+)/g,\'$1&ap=%252526fmt%253D'+i+'\')'
+ ');'
+ 'void(0);';
// Create Links Block
d.getElementById('watch-url-div').innerHTML
+= '<div id="URL-YT-video" style="text-align:right;padding-right:30px;">'
+ '<a href="javascript:'+url_command+'">[ Highest-Quality-URL ]</a>'
+ '</div>';
d.getElementById('watch-embed-div').innerHTML
+= '<div id="EMBED-YT-video" style="text-align:right;padding-right:30px;">'
+ '<a href="javascript:'+embed_command+'">[ Highest-Quality-Embed ]</a>'
+ '</div>';
}
/**
* Add HD or MP4 Download Links
*/
function showDownloadLinks() {
if( !d.getElementById('YHS-DL-div') ) {
// Create Links Block
d.getElementById('watch-embed-div').innerHTML
+= '<div id="YHS-DL-div">'
+ '<div id="check_fmt_22">checking fmt=22</div>'
+ '<div id="check_fmt_35">checking fmt=35</div>'
+ '<div><a href="'+makeDownloadURL(18)+'">[OK] DL fmt=18 ( iPod /MP4/H.264/AAC)</a></div>'
+ '<div><a href="'+makeDownloadURL()+'">[OK] DL normal ( LQ /FLV/H.263/MP3)</a></div>'
+ '</div>';
checkHD();
checkHQ();
}
}
/* add eventLister for cross browser */
function _AddEventListener(e, type, fn) {
if (e.addEventListener) {
e.addEventListener(type, fn, false);
}
else {
e.attachEvent('on' + type, function() {
fn(window.event);
});
}
}
/**
* Controller
*/
// Watching Page
if ( l.pathname.match(/\/watch/) ) {
// always watch in Highest Quality
if ( !l.search.match(/fmt=[0-9]*/) ) {
redirect();
} else {
showCopyLink();
showDownloadLinks();
createMenu();
w.visualize();
}
}
// Other Page (Top, Browse, seache, ...)
else {
// for Auto Pager
var scrollHeight = d.documentElement.scrollHeight;
_AddEventListener(
w,
"scroll",
function(e){
if(d.documentElement.scrollHeight - scrollHeight > 100){
scrollHeight = d.documentElement.scrollHeight;
w.visualize();
}
}
);
createMenu();
w.visualize();
}
})();
