1 files changed, 94 insertions, 0 deletions
diff --git a/nico_related_videos.js b/nico_related_videos.js
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+// ==VimperatorPlugin==
+// @name           Nico Related Videos
+// @description-ja ニコニコ動画のオススメ動画のリスト
+// @license        Creative Commons 2.1 (Attribution + Share Alike)
+// @version        1.0.0
+// ==/VimperatorPlugin==
+//
+//  Author:
+//    anekos
+//
+//  Usage:
+//    ニコニコ動画のオススメ動画のリストを補完で表示します。
+//
+//    コマンドにURL以外を指定したときの動作:
+//      空            => ニコニコ動画のトップページに移動
+//      動画ID(sm.+)  => 動画に移動
+//      その他文字列  => ニコニコ動画でそれを検索
+//
+// Link:
+//    http://d.hatena.ne.jp/nokturnalmortum/20080910#1220991278
+
+
+(function () {
+
+  function getVideoId () {
+    let m = liberator.buffer.URL.match(/^http:\/\/www\.nicovideo\.jp\/watch\/([a-z0-9]+)/);
+    return m && m[1];
+  }
+
+  function httpRequest (uri, onComplete) {
+    var xhr = new XMLHttpRequest();
+    xhr.onreadystatechange = function(){
+      if(xhr.readyState == 4){
+        if(xhr.status == 200)
+          onComplete(xhr.responseXML);
+        else
+          throw new Error(xhr.statusText)
+      }
+    };
+    xhr.open("GET", uri, true);
+    xhr.send(null);
+  }
+
+  function getRelatedVideos () {
+    let videoId = getVideoId();
+    if (!videoId)
+      return [];
+    let videos = [];
+    let uri = 'http://www.nicovideo.jp/api/getrelation?sort=p&order=d&video=' + videoId;
+    let xhr = new XMLHttpRequest();
+    xhr.open("GET", uri, false);
+    xhr.send(null);
+    let xml = xhr.responseXML;
+    let v, vs = xml.evaluate('//video', xml, null, XPathResult.ORDERED_NODE_ITERATOR_TYPE , null);
+    while (v = vs.iterateNext()) {
+      let [cs, video] = [v.childNodes, {}];
+      for each (let c in cs)
+        if (c.nodeName != '#text')
+          video[c.nodeName] = c.textContent;
+      videos.push(video);
+    }
+    return videos;
+  }
+
+
+  let last = {url: null, videos: []};
+  let nothing = 'No related videos';
+
+  liberator.commands.addUserCommand(
+    ['nicorelated'],
+    'niconico related videos',
+    function (url) {
+      url = (function () {
+        if (url == nothing) 
+          return 'http://www.nicovideo.jp/';
+        if (url.match(/^[a-z]{2}\d+$/))
+          return 'http://www.nicovideo.jp/watch/' + url;
+        if (!url.match(/http:\/\//))
+          return 'http://www.nicovideo.jp/search/' + encodeURIComponent(url);
+      })() || url;
+      liberator.open(url);
+    },
+    {
+      completer: function (args) {
+        if (liberator.buffer.URL != last.url) {
+          last.videos = [[v.url, v.title] for each (v in getRelatedVideos())];
+          last.url = liberator.buffer.URL;
+        }
+        return [0, last.videos.length ? last.videos : [[nothing, nothing]]];
+      }
+    }
+  );
+
+})();