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YouTube RSS Feed

Adds an RSS feed button to YouTube channels next to the subscribe button

当前为 2015-04-27 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name          YouTube RSS Feed
  3. // @namespace     http://greasyfork.org/users/2240-doodles
  4. // @author        Doodles
  5. // @version       13
  6. // @description   Adds an RSS feed button to YouTube channels next to the subscribe button
  7. // @icon          http://i.imgur.com/Ty5HNbT.png
  8. // @icon64        http://i.imgur.com/1FfVvNr.png
  9. // @include       *://*youtube.*/*
  10. // @grant         none
  11. // @run-at        document-end
  12. // @updateVersion 13
  13. // ==/UserScript==
  14.  
  15. // Using a work-around to use jQuery, and be compatible with Chrome
  16. // Found here: http://stackoverflow.com/a/3550261
  17.  
  18. (function() {
  19. 	function addJQuery(callback){
  20. 		var script = document.createElement("script");
  21. 		script.setAttribute("src", "//ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js");
  22. 		script.addEventListener('load', function(){
  23. 			var script = document.createElement("script");
  24. 			script.textContent = "window.jQ=jQuery.noConflict(true);(" + callback.toString() + ")();";
  25. 			document.body.appendChild(script);
  26. 		}, false);
  27. 		document.body.appendChild(script);
  28. 	}
  29. 	function RssFeedButton(){
  30. 		// YouTube page load fix, so script runs properly on every page
  31. 		jQ('a').click(function( event ) {
  32. 			event.preventDefault();
  33. 			window.location = jQ(this).attr("href");
  34. 		});
  35. 		// NOTE: this is a horrible solution, but everything else I tried didnt work 100% of the time
  36. 		// Discussion of this problem found here: http://stackoverflow.com/a/21146511
  37. 		var rssFeedNew = "feed://www.youtube.com/feeds/videos.xml?channel_id=";
  38. 		var rssFeed = "nope";
  39. 		if(document.URL.indexOf("/playlist?list=") != -1){
  40. 			rssFeed = "feed://gdata.youtube.com/feeds/api/playlists/" + document.URL.split("list=")[1].split("&")[0];
  41. 		}else if(document.getElementById('c4-primary-header-contents') != null){
  42. 			var metaId = jQ("meta[itemprop='channelId']");
  43. 			if(metaId.length != 0){
  44. 				rssFeed = rssFeedNew + jQ(metaId[0]).attr("content");
  45. 			}else{
  46. 				var linkRss = jQ("link[title='RSS']");
  47. 				if(linkRss.length != 0){
  48. 					rssFeed = jQ(linkRss[0]).attr("href");
  49. 					if(rssFeed.startsWith("https")){
  50. 						rssFeed = "feed" + rssFeed.substring(5);
  51. 					}else if(rssFeed.startsWith("http")){
  52. 						rssFeed = "feed" + rssFeed.substring(4);
  53. 					}
  54. 				}
  55. 			}
  56. 		}else if(document.URL.indexOf("/watch") != -1 && document.URL.indexOf("v=") != -1){
  57. 			var metaId = jQ("meta[itemprop='channelId']");
  58. 			if(metaId.length != 0){
  59. 				rssFeed = rssFeedNew + jQ(metaId[0]).attr("content");
  60. 			}
  61. 		}
  62. 		if(rssFeed != "nope"){
  63. 			var button = document.createElement('button');
  64. 			button.setAttribute('class', 'yt-uix-button yt-uix-button-size-default yt-uix-button-subscribe-branded yt-uix-button-has-icon no-icon-markup yt-uix-subscription-button yt-can-buffer');
  65. 			button.setAttribute('onclick', "parent.location='" + rssFeed + "'");
  66. 			var outerSpan = document.createElement('span');
  67. 			outerSpan.setAttribute('class', 'yt-uix-button-content');
  68. 			var innerSpan = document.createElement('span');
  69. 			innerSpan.setAttribute('class', 'subscribe-label');
  70. 			innerSpan.appendChild(document.createTextNode('RSS Subscribe '));
  71. 			button.appendChild(outerSpan);
  72. 			outerSpan.appendChild(innerSpan);
  73. 			jQ(button).css("background", "linear-gradient(#fd9b12, #fe6702)");
  74. 			jQ(button).mouseover(function(){ jQ(this).css("background", "linear-gradient(#fe6702, #fd9b12)"); });
  75. 			jQ(button).mouseout(function(){ jQ(this).css("background", "linear-gradient(#fd9b12, #fe6702)"); });
  76. 			if(document.URL.indexOf("/playlist?list=") != -1){
  77. 				var playlistControls = jQ("div.playlist-actions")[0];
  78. 				if(playlistControls != null){
  79. 					playlistControls.appendChild(button);
  80. 				}
  81. 			}else if(document.getElementById('c4-primary-header-contents') != null){
  82. 				var header = document.getElementById('c4-primary-header-contents');
  83. 				if(header != null){
  84. 					var divs = header.getElementsByTagName('span');
  85. 					for(var i = 0; i < divs.length;i++){
  86. 						var cl = divs.item(i).getAttribute('class');
  87. 						if(cl.indexOf("channel-header-subscription-button-container") != -1){
  88. 							var firstButton = divs.item(i).getElementsByTagName('button')[0];
  89. 							divs.item(i).insertBefore(button, firstButton);
  90. 							var spacer = document.createTextNode(" ");
  91. 							divs.item(i).insertBefore(spacer, firstButton);
  92. 						}
  93. 					}
  94. 				}
  95. 			}else if(document.URL.indexOf("/watch") != -1 && document.URL.indexOf("v=") != -1){
  96. 				var header = document.getElementById('watch7-subscription-container');
  97. 				if(header != null){
  98. 					var properSpan = header.getElementsByTagName('span')[0];
  99. 					properSpan.insertBefore(document.createTextNode(" "), properSpan.firstChild);
  100. 					properSpan.insertBefore(button, properSpan.firstChild);
  101. 				}
  102. 			}
  103. 			if(jQ("link[title='RSS']").length == 0){
  104. 				jQ('head').append('<link rel="alternate" type="application/rss+xml" title="RSS" href="' + rssFeed + '" />');
  105. 			}
  106. 		}
  107. 	}
  108. 	addJQuery(RssFeedButton);
  109. })();