ニコニコ生放送の予定をGoogleカレンダーに登録するブックマークレット http://d.hatena.ne.jp/ino46/20110320/1300555752

nicovideolive4googlecalendar.js

(function(){
    try {
        //定義
        var d = document,titles,airdate,url,url_cal;
        
        //URLの確認
        url = location.toString();
        if(
            (url.indexOf('http://live.nicovideo.jp/watch/lv') != 0) &&
            (url.indexOf('http://live.nicovideo.jp/gate/lv') != 0)
        ){
            throw 'This URL is not supported';
        }
        
        //String.trim()
        String.prototype.trim = function(){
            return this.replace(/^\s*|\s*$/g, '');
        }
        
        //取得
        titles = d.querySelector('div.infobox > h2').textContent.trim(); //タイトルと番組ID
        airdate = d.querySelector('div.kaijo').textContent.trim(); //放送開始(開場)時刻
        //確認
        if(!(titles[0] && titles[1] && airdate)) throw 'Cannot get enough info';
        
        //整形
        titles = titles.split('\n'); //タイトルとIDを分離
        titles[1] = titles[1].trim().replace(/^\(|\)$/g, ''); //ID整形
        airdate = airdate.replace(/[^\d]/g, ''); //数字のみに
        airdate = airdate.slice(0, 8) + 'T' + airdate.slice(8, 12) + '00'; //開場時刻
        //airdate = airdate.slice(0, 8) + 'T' + airdate.slice(12, 16) + '00'; //放送開始時刻
        
        //生成
        url_cal = 'https://www.google.com/calendar/render'
        + '?action=TEMPLATE'
        + '&text=' + encodeURIComponent(titles[0])
        + '&dates=' + airdate + '/' + airdate
        + '&details=' + encodeURIComponent(titles[0] + '\n' + titles[1] + '\n' + d.location.href);
        
        //出力
        //console.log(url_cal);
        window.open(url_cal, '_blank');
    }
    catch(e){
        //console.log(e);
        alert('Error:\n' + e);
    }
})();