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Lazy Embedded Video

Lazy load embedded videos from Youtube/Dailymotion/Vimeo/Rutube/Twitch/Ustream

当前为 2016-06-12 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name        Lazy Embedded Video
  3. // @namespace   zeusex81@gmail.com
  4. // @description Lazy load embedded videos from Youtube/Dailymotion/Vimeo/Rutube/Twitch/Ustream
  5. // @version     2.4
  6. // @include     *
  7. // @resource    playIcon https://i.imgur.com/1aybyWN.png
  8. // @grant       GM_getResourceURL
  9. // @run-at      document-start
  10. // ==/UserScript==
  11.  
  12. (function() {
  13. 	try {
  14. 		if(/youtube|dailymotion|vimeo|rutube|twitch|ustream/i.test(top.location.hostname))
  15. 			return;
  16. 	} catch(e) {}
  17. 	var wnd = typeof(unsafeWindow) != "undefined" ? unsafeWindow : window;
  18. 	var getResourceURL = typeof(GM_getResourceURL) != "undefined" ? GM_getResourceURL :
  19. 	function(name) {
  20. 		switch(name) {
  21. 		case "playIcon" : return "//i.imgur.com/1aybyWN.png";
  22. 		}
  23. 	};
  24. 	
  25. 	var CSP = -1;
  26.     var testCSP = function() {
  27. 		if(CSP == -1) {
  28. 			var script  = document.createElement("SCRIPT");
  29. 			script.innerHTML = "CSP_AllowInlineScript = true;";
  30. 			document.head.appendChild(script);
  31. 			document.head.removeChild(script);
  32. 			CSP = wnd.CSP_AllowInlineScript ? 1 : 0;
  33. 		}
  34. 		return CSP;
  35.     };
  36. 	
  37.     var html, a;
  38. 	var createHtml = function(url, iframe, api, background_img) {
  39. 		/(.*\/\/(?:[^.\/]+\.)?([^.\/]+)\.[^.\/]+)\//i.test(url);
  40. 		var provider_url = RegExp.$1, provider_name = RegExp.$2, data_convert = "", extra_script = "", button_hsb = [];
  41. 		if(api.includes("yahooapis"))
  42. 			data_convert += "data = data.query.results.json;";
  43. 		switch(provider_name) {
  44. 		case "youtube" :
  45. 			button_hsb.push(  0, 100, 100);
  46. 			data_convert += "delete data.thumbnail_url;";
  47. 			extra_script += "var img    = new Image();"+
  48. 							"img.onload = function() {"+
  49. 								"if(this.naturalWidth > 480)"+
  50. 									"document.body.style.backgroundImage = 'url('+this.src+')';"+
  51. 								"else if(this.src.includes('maxres'))"+
  52. 									"this.src = this.src.replace('maxres', 'sd');"+
  53. 							"};"+
  54. 							"img.src    = '"+background_img.match(/\/(.+)\//)[0]+"maxresdefault.jpg';";
  55. 			break;
  56. 		case "dailymotion" :
  57. 			button_hsb.push( 60,  30, 300);
  58. 			data_convert += "var img    = new Image();"+
  59. 							"img.onload = function() { document.body.style.backgroundImage = 'url('+this.src+')'; };"+
  60. 							"img.src    = data.thumbnail_url.replace(/\\/x240[^.]+/i, '');"+
  61. 							"delete data.thumbnail_url;";
  62. 			break;
  63.         case "vimeo" :
  64. 			button_hsb.push(220,  50, 220);
  65. 			data_convert += "data.thumbnail_url = data.thumbnail_url.replace(/_\\d+/i, '');";
  66.             break;
  67.         case "rutube" :
  68. 			button_hsb.push(  0,   0, 250);
  69. 			data_convert += "data.thumbnail_url = data.thumbnail_url.replace(/\\?.+/i, '');";
  70.             break;
  71. 		case "twitch" :
  72. 			button_hsb.push(270,  50, 100);
  73. 			if(background_img) { // channel live
  74. 				data_convert += "data.title         = data.status || 'Untitled Broadcast';"+
  75. 								"data.author_url    = '"+provider_url+"/'+data.name+'/profile';"+
  76. 								"data.author_name   = data.display_name;"+
  77. 								"data.duration      = data.game && 'playing <a target=_blank href=\""+provider_url+"/directory/game/'+data.game+'\">'+data.game+'</b>';"+
  78. 					            "offline_image      = data.video_banner;";
  79. 				extra_script += "function jsonpCallback2(data) {"+
  80. 									"if(data.streams.length != 0) return;"+
  81. 									"document.body.style.backgroundImage             = 'url('+offline_image+')';"+
  82. 									"document.getElementById('duration').textContent = 'offline';"+
  83. 								"}"+
  84. 					        "</script>"+
  85. 					        "<script defer src='https://api.twitch.tv/kraken/streams?channel="+url.match(/[^\/]+$/)[0]+"&callback=jsonpCallback2'>";
  86. 			} else { // video recorded
  87. 				data_convert += "data.thumbnail_url = data.preview.replace(/\\d+x\\d+/i, '0x0');"+
  88. 								"data.author_url    = '"+provider_url+"/'+data.channel.name+'/profile';"+
  89. 								"data.author_name   = data.channel.display_name;"+
  90. 								"data.duration      = data.length;";
  91. 			}
  92. 			break;
  93. 		case "ustream" :
  94. 			button_hsb.push( 40,  50, 230);
  95. 			if(background_img) // channel live
  96. 				data_convert += "delete data.thumbnail_url;";
  97. 			break;
  98. 		}
  99. 		if(!html) html = [
  100. 			"<!doctype html>"+
  101. 			"<html>"+
  102. 				"<head>"+
  103. 					"<title>Lazy Embedded Video</title>"+
  104. 					"<script defer src='", api, "&callback=jsonpCallback'></script>"+
  105. 					"<script>"+
  106. 						"function jsonpCallback(data) {",
  107. 							data_convert,
  108. 							"if(data.thumbnail_url) document.body.style.backgroundImage           = 'url('+data.thumbnail_url+')';"+
  109. 							"if(data.url)           document.getElementById('title').href         = data.url;"+
  110. 							"if(data.title)         document.getElementById('title').textContent  = "+
  111. 							                       "document.getElementById('title').title        = data.title;"+
  112. 							"if(data.author_url)    document.getElementById('author').href        = data.author_url;"+
  113. 							"if(data.author_name)   document.getElementById('author').textContent = data.author_name;"+
  114. 							"if(data.duration) {"+
  115. 								"if(Number(data.duration))"+
  116. 									 "document.getElementById('duration').textContent = new Date(data.duration*1000).toISOString().substr(11,8);"+
  117. 								"else document.getElementById('duration').innerHTML   = data.duration;"+
  118. 							"}"+
  119. 						"}",
  120. 						extra_script,
  121. 					"</script>"+
  122. 					"<style>"+
  123. 						"html { height: 100%; }"+
  124. 						"body {"+
  125. 							"margin: 0;"+
  126. 							"height: 100%;"+
  127. 							"background: black ", background_img, " center/100% no-repeat;"+
  128. 							"color: white;"+
  129. 							"font: 14px sans-serif;"+
  130. 						"}"+
  131. 						"a {"+
  132. 							"color: inherit;"+
  133. 							"font-weight: bold;"+
  134. 							"text-decoration: none;"+
  135. 						"}"+
  136. 						"a:hover { text-decoration: underline; }"+
  137. 						"ul {"+
  138. 							"margin: 0;"+
  139. 							"padding: 0;"+
  140. 							"list-style: none;"+
  141. 						"}"+
  142. 						"#infobar {"+
  143. 							"position: absolute;"+
  144. 							"top: 0px;"+
  145. 							"width: 100%;"+
  146. 							"padding: 8px 16px;"+
  147. 							"box-sizing: border-box;"+
  148. 							"background: rgba(0,0,0,0.5);"+
  149. 							"word-wrap: break-word;"+
  150. 						"}"+
  151. 						"#infobar_right {"+
  152. 							"float: right;"+
  153. 							"margin-left: 16px;"+
  154. 							"text-align: right;"+
  155. 							"text-transform: capitalize;"+
  156. 						"}"+
  157. 						"#button {"+
  158. 							"height: 100%;"+
  159. 							"cursor: pointer;"+
  160. 							"background-position: 0px 50%;"+
  161. 						"}"+
  162. 						"#button:hover {"+
  163. 							"background-position: -70px 50%;"+
  164. 							"filter: hue-rotate(", button_hsb[0], "deg) saturate(", button_hsb[1], "%) brightness(", button_hsb[2], "%);"+
  165. 							"-webkit-filter: hue-rotate(", button_hsb[0], "deg) saturate(", button_hsb[1], "%) brightness(", button_hsb[2], "%);"+
  166. 						"}"+
  167. 						"#button > div {"+
  168. 							"width: 70px;"+
  169. 							"height: 100%;"+
  170. 							"margin: auto;"+
  171. 							"background: url("+getResourceURL("playIcon")+") no-repeat;"+
  172. 							"background-position: inherit;"+
  173. 						"}"+
  174. 						"#titleBlock {"+
  175.    			    			"overflow: hidden;"+
  176.    			    			"max-height: 34px;"+
  177. 						"}"+
  178. 					"</style>"+
  179. 				"</head>"+
  180. 				"<body>"+
  181. 					"<div id=button onclick='location.replace(\"", iframe, "\");'><div></div></div>"+
  182. 					"<div id=infobar>"+
  183. 						"<ul id=infobar_right>"+
  184. 							"<li><a id=author target=_blank></a></li>"+
  185. 							"<li><a id=provider target=_blank href='", provider_url, "'>", provider_name, "</a></li>"+
  186. 						"</ul>"+
  187. 						"<ul>"+
  188. 							"<li id=titleBlock><a id=title target=_blank href='", url, "'>", url, "</a></li>"+
  189. 							"<li id=duration></li>"+
  190. 						"</ul>"+
  191. 					"</div>"+
  192. 				"</body>"+
  193. 			"</html>"
  194. 		];
  195. 		html[ 1] = api;
  196. 		html[ 3] = data_convert;
  197. 		html[ 5] = extra_script;
  198. 		html[ 7] = background_img;
  199. 		html[ 9] = button_hsb[0];
  200. 		html[11] = button_hsb[1];
  201. 		html[13] = button_hsb[2];
  202. 		html[15] = button_hsb[0];
  203. 		html[17] = button_hsb[1];
  204. 		html[19] = button_hsb[2];
  205. 		html[21] = iframe;
  206. 		html[23] = provider_url;
  207. 		html[25] = provider_name;
  208. 		html[27] = url;
  209. 		html[29] = url;
  210. 	};
  211. 	
  212. 	var createOembed  = function(api, url) { return api+encodeURIComponent(url); };
  213. 	var createNOembed = function(api, url) { return createOembed("//noembed.com/embed?url=", location.protocol+url); };
  214. 	var createYOembed = function(api, url) { return createOembed("//query.yahooapis.com/v1/public/yql?format=json&q=",
  215. 											 'SELECT * FROM json WHERE url="'+createOembed(location.protocol+api,url)+'"'); };
  216. 	
  217. 	var createLazyVideo = function(elem) {
  218. 		if(elem.tagName == "IFRAME" && elem.srcdoc) return true;
  219.         var id, args, url = elem.src || elem.data || elem.dataset.src;
  220.         if(!url) return true;
  221.         if(!a) a = document.createElement("A");
  222.         a.href = url;
  223. 		/([^.]+)\.[^.]+$/i.test(a.hostname);
  224.         switch(RegExp.$1) {
  225.         case "youtube" :
  226.             if(/\/(?:v|embed)\/([^&]*)/i.test(a.pathname))
  227. 				id = RegExp.$1 || (/[?&]v=([^&]+)/i.test(a.search) && RegExp.$1);
  228.             if(!id || !testCSP()) return !id;
  229.             args = "?autoplay=1";
  230.             if(/[?&](list=[^&]+)/i.test(a.search))  args += "&"+RegExp.$1;
  231.             if(/[?&](start=[^&]+)/i.test(a.search)) args += "&"+RegExp.$1;
  232. 			createHtml(url =
  233. 				"//www.youtube.com/watch"+args+"&v="+id,
  234. 				"//www.youtube.com/embed/"+id+args,
  235. 				createNOembed("//www.youtube.com/oembed?format=json&url=", url),
  236. 				"url(//i.ytimg.com/vi/"+id+"/hqdefault.jpg)"
  237. 			);
  238.             break;
  239.         case "dailymotion" :
  240.             if(/\/(?:swf|embed)\/video\/([^&_]+)/i.test(a.pathname)) id = RegExp.$1;
  241.             if(!id || !testCSP()) return !id;
  242.             args = "?autoplay=1";
  243.             if(/[?&](mute=[^&]+)/i.test(a.search))  args += "&"+RegExp.$1;
  244.             if(/[?&](start=[^&]+)/i.test(a.search)) args += "&"+RegExp.$1;
  245. 			createHtml(url =
  246. 				"//www.dailymotion.com/video/"+id+args,
  247. 				"//www.dailymotion.com/embed/video/"+id+args,
  248. 				createOembed("//www.dailymotion.com/services/oembed?format=json&url=", location.protocol+url),
  249. 				"url(//www.dailymotion.com/thumbnail/video/"+id+")"
  250. 			);
  251.             break;
  252.         case "vimeo" :
  253.             if(/\/(?:moogaloop\.swf|video\/)([^&]*)/i.test(a.pathname))
  254. 				id = RegExp.$1 || (/[?&]clip_id=([^&]+)/i.test(a.search) && RegExp.$1);
  255.             if(!id || !testCSP()) return !id;
  256.             args = "?autoplay=1";
  257.             if(/[?&](loop=[^&]+)/i.test(a.search)) args += "&"+RegExp.$1;
  258.             if(/(\#t=[\dhms]+)/i.test(a.hash))     args += RegExp.$1;
  259. 			createHtml(url =
  260. 				"//vimeo.com/"+id+args,
  261. 				"//player.vimeo.com/video/"+id+args,
  262. 				createOembed("//vimeo.com/api/oembed.json?url=", url)
  263. 			);
  264.             break;
  265.         case "rutube" :
  266.             if(/\/play\/embed\/([^&.\/]+)/i.test(a.pathname)) id = RegExp.$1;
  267.             if(!id || !testCSP()) return !id;
  268.             args = "?autoStart=1";
  269.             if(/[?&](bmstart=[^&]+)/i.test(a.search)) args += "&"+RegExp.$1;
  270. 			createHtml(url =
  271. 				"//rutube.ru/"+(isNaN(id) ? "video/"+id+"/" : "tracks/"+id+".html/")+args,
  272. 				"//rutube.ru/play/embed/"+id+args,
  273. 				createOembed("//rutube.ru/api/oembed/?format=jsonp&url=", url)
  274. 			);
  275.             break;
  276.         case "twitch" :
  277.             if(/[?&](channel|video)=([^&]+)/i.test(a.search)) {args = RegExp.$1; id = RegExp.$2;}
  278. 			else if(/\/(.+)\/embed/i.test(a.pathname))        {args = "channel"; id = RegExp.$1;}
  279.             if(!id || !testCSP()) return !id;
  280. 			createHtml(url =
  281. 				"//www.twitch.tv/"+(args=="video" ? id.replace("v","c/v/") : id),
  282. 				"//player.twitch.tv/?autoplay=true&"+args+"="+id,
  283. 				"https://api.twitch.tv/kraken/"+args+"s/"+id+"?",
  284. 				args=="channel" ? "url(//static-cdn.jtvnw.net/previews-ttv/live_user_"+id+"-0x0.jpg)" : null
  285. 			);
  286.             break;
  287.         case "ustream" :
  288.             if(/(?:\/embed)?\/(channel\/|recorded\/)?([^&]+)/i.test(a.pathname)) {args = RegExp.$1 || "channel/"; id = RegExp.$2;}
  289.             if(!id || !testCSP()) return !id;
  290. 			createHtml(url =
  291. 				"//www.ustream.tv/"+args+id,
  292. 				"//www.ustream.tv/embed/"+(args=="channel/" ? "" : args)+id+"?html5ui=1&autoplay=1",
  293. 				createYOembed("//www.ustream.tv/oembed?format=json&url=", url),
  294. 				args=="channel/" && !isNaN(id) ? "url(//static-cdn1.ustream.tv/i/channel/live/1_"+id+",640x360,b:0.jpg)" : null
  295. 			);
  296.             break;
  297.         default :
  298.             return true;
  299.         }
  300. 		if(elem.tagName != "IFRAME") {
  301. 			var iframe = document.createElement("IFRAME");
  302. 			iframe.id            = elem.id;
  303. 			iframe.className     = elem.className;
  304. 			iframe.style.cssText = elem.style.cssText;
  305. 			if(!iframe.style.width  && elem.width ) iframe.style.width  = elem.width+"px";
  306. 			if(!iframe.style.height && elem.height) iframe.style.height = elem.height+"px";
  307. 			if(elem.parentNode.tagName == "OBJECT") {
  308. 				elem = elem.parentNode;
  309. 				iframe.style.cssText = elem.style.cssText + iframe.style.cssText;
  310. 				if(!iframe.style.width  && elem.width ) iframe.style.width  = elem.width+"px";
  311. 				if(!iframe.style.height && elem.height) iframe.style.height = elem.height+"px";
  312. 			}
  313. 			if(!iframe.style.borderWidth)       iframe.style.borderWidth   = (elem.border||0)+"px";
  314. 			switch(elem.align) {
  315. 			case "left" : case "right" :
  316. 				if(!iframe.style.float)         iframe.style.float         = elem.align; break;
  317. 			case "top" : case "middle" : case "bottom" :
  318. 				if(!iframe.style.verticalAlign) iframe.style.verticalAlign = elem.align; break;
  319. 			}
  320. 			elem.parentNode.replaceChild(iframe, elem);
  321. 			elem = iframe;
  322. 		}
  323. 		elem.allowFullscreen = true;
  324. 		elem.srcdoc = html.join("");
  325.         return true;
  326. 	};
  327. 	
  328. 	var update = function() {
  329. 		if(CSP && document.readyState == "loading") requestAnimationFrame(update);
  330. 		if(!CSP || !document.body) return;
  331. 		// convert NodeList to Array because for some reason sometimes I wasn't able to read src when iterating directly through NodeList
  332. 		var nodes = ["IFRAME", "EMBED", "OBJECT"].reduce(function(sum, value) {
  333. 			return sum.concat([].slice.call(document.getElementsByTagName(value)));
  334. 		}, frameElement ? [frameElement] : []);
  335. 		for(var	i = 0; i < nodes.length && createLazyVideo(nodes[i]); i++) {}
  336. 	};
  337. 	update();
  338. })();

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