[NicoCache_nl] 新検索βにキャッシュアイコンを表示する

nicocacheicon4newsearchbeta.user.js

// ==UserScript==
// @name        nicocacheicon for newsearchbeta
// @description 新検索βにキャッシュアイコンを表示する
// @include     http://search.nicovideo.jp/*
// @version     1.0.0
// ==/UserScript==

(function(){
  // nlMovieFetcher を導入している場合は[true]、導入していない場合は[false]
	var IsMovieFetcher = true;

	if(IsMovieFetcher){
		var sc = document.createElement("script");
		sc.type = "text/javascript";
		sc.src  = "http://www.nicovideo.jp/local/nlMovieFetcher.js";
		document.body.appendChild(sc);
	}

	function set_nicochachicon(smidnode){
		var movielist = [];
		for(key in smidnode){
			movielist.push(key);
		}
		if(!movielist.length) return;
		
		GM_xmlhttpRequest({
			method: "GET",
			url:    "http://www.nicovideo.jp/cache/rsearch/"+movielist.join("|"),
			onload: function(res){
				if(res.status === 200){
					var cachelist= JSON.parse(res.responseText);

					for(var i=0, len=movielist.length; i<len; i++){
						var smid  = movielist[i];
						var cache = cachelist[smid];
						var low   = cachelist[smid + "low"];

						if(cache || low){
							var icon  = "http://www.nicovideo.jp/local/cacheicon.gif";
							var color = "#C00000";

							// economy
							if(low){
								icon  = "http://www.nicovideo.jp/local/cacheeconomy.gif";
								color = "#C08000";
							}

							var node = smidnode[smid];
							var img = document.createElement("img");
							img.src = icon;
							img.style.position = "absolute";
							img.style.top  = "85px";
							img.style.left = "0px";
							node.firstElementChild.appendChild(img);

							var title = node.getElementsByClassName("title")[0].firstElementChild;
							title.style.color = color;
						}
					}
				}
			}
		});
	}

	var observer = new MutationObserver(function(mutations){
		var smidnode = [];
		mutations.forEach(function(mutation){
			if(mutation.addedNodes && mutation.addedNodes.length){
				var node = mutation.addedNodes[0];
				if(node.nodeType === Node.ELEMENT_NODE  &&
				   node.nodeName.toLowerCase() === "li" &&
				   node.className.toLowerCase() === "video"){

					var smid = node.firstElementChild.firstElementChild.getAttribute("data-cmsid");
					// HashMap: smid = <li class="video">
					smidnode[smid] = node;

					// fetch link
					if(IsMovieFetcher){
						var fetch = document.createElement("a");
						fetch.href = "javascript:void(0);";
						fetch.setAttribute("onclick", "nicofetch(parentNode,'" + smid + "',3);");
						fetch.textContent = "fetch";
						var span = document.createElement("span");
						span.appendChild(fetch);
						var count = node.getElementsByClassName("count")[0];
						count.appendChild(span);
					}
				}
			}
		});
		set_nicochachicon(smidnode);
	});
	observer.observe(document.getElementById("row-results"), {childList: true , subtree: true});
})();