endless summer on anond (today -> past year) Fork

  • /*
     * @title endless summer on anond (today -> past year)
     * @description 昔の今日の増田ページをランダムでAutoPagerize風
     * @include http://anond.hatelabo.jp/
     * @license reblog commons license ( cc by 3.0 )
     */
    
    /**
     * This script is forked from taizooo's "endless summer on dsbd"
     * http://let.hatelabo.jp/taizooo/let/gYC-xcz67_6bYQ
     */
    
    // bookmark
    // autopager part from "twitter.AutoPager" : http://userscripts.org/scripts/review/47998
    
    (function() {
      var start_url = location.href;
    
      var State = true;
      var BASE_REMAIN_HEIGHT = 10000;
      var loading = false;
    
      var last_element = (function() {
        var a = get_next_elements(document);
        return a[a.length - 1];
      }());
    
      var max_page_number = get_max_page_number(document);
    
      if (!last_element || !max_page_number) {
        return error();
      }
      var insert_point = last_element.nextSibling;
      var insert_parent = last_element.parentNode;
      var next_day;
      var next_year;
    
      var todayStr = location.href.split('/');
      todayStr = todayStr[todayStr.length - 1];
      var today;
      if (/(200[6-9]|201\d)(0[1-9]|1[0-2])([0-2]\d|3[0-1])/.test(todayStr.substring(0, 8))) {
        today = new Date(+(new Date()).getYear() + 1900, +todayStr.slice(4,6) - 1, +todayStr.slice(6,8) + 1);
      } else {
        today = new Date();
      }
      var month = today.toISOString().slice(5,7);
      var day = today.toISOString().slice(8, 10);
      var thisYear = today.getYear();
      var bottomYear = (today.getMonth() < 9 || (today.getMonth() === 10 && today.getDay() < 24)) ? 107 : 106;
      var pages = new Array(thisYear - bottomYear + 1);
      for (var i = 0; i < pages.length; i++) {
        pages[i] = {
          day: '/' + (1900 + bottomYear + i) + month + day,
          page: null
        };
      }
    
      var remainNotice = document.createElement('div');
      remainNotice.style.position = 'fixed';
      remainNotice.style.top = '10px';
      remainNotice.style.right = '10px';
      remainNotice.fontWeight = 'bold';
      document.body.appendChild(remainNotice);
    
      next_day_load();
    
      function calculateRemainPages() {
        var counter = 0;
        pages.forEach(function(day) {
          if (day.page) {
            counter += day.page.length;
          }
        });
        return counter;
      }
    
      window.addEventListener('scroll', function() {
        if (loading) return;
        var remain = document.documentElement.scrollHeight - window.innerHeight - window.pageYOffset;
        if (State && remain < BASE_REMAIN_HEIGHT) {
          next_day_load();
        }
      }, false);
    
      function next_day_load() {
        loading = true;
        if (!pages.length) return;
        next_year = Math.floor(Math.random() * pages.length);
        next_day = pages[next_year].day;
        if (pages[next_year].page) {
          next_page_load();
        } else {
          var x = new XMLHttpRequest();
          x.onload = function(e) {
            if (x.status <= 200 && x.status < 300) {
              next_page_load(e);
            } else {
              error();
              next_day_load();
            }
          };
          x.open('GET', next_day, true);
          x.responseType = 'document';
          x.send(null);
        }
      }
    
      function next_page_load(e) {
        if (e) {
          var doc = e.target.response;
          var pager_r = doc.querySelectorAll('.pager-r');
          var max = pager_r[pager_r.length - 1].innerText.match(/^[0-9]*/)[0];
          if (!pages[next_year].page) {
            pages[next_year].page = new Array(max);
            for (var i = 0; i < max; i++) {
              pages[next_year].page[i] = i + 1;
            }
          }
        }
        var next_page = Math.floor(Math.random() * pages[next_year].page.length);
        var next = next_day + '?page=' + pages[next_year].page[next_page];
        pages[next_year].page.splice(next_page, 1);
        if (!pages[next_year].page.length) {
          pages.splice(next_year, 1);
        }
        console.log('next: ' + next);
        var x = new XMLHttpRequest();
        x.onload = function() {
          if (x.status <= 200 && x.status < 300) {
            history.pushState("", "", next);
            load(x);
          } else {
            error();
            next_page_load();
          }
        };
        x.open('GET', next, true);
        x.send(null);
      }
    
      function load(x) {
        var html = x.responseText.replace(/<script(?:[ \t\r\n][^>]*)?>[\S\s]*?<\/script[ \t\r\n]*>|<\/?(?:i?frame|html|script|object)(?:[ \t\r\n][^<>]*)?>/gi, ' ');
        var htmlDoc;
        if (document.implementation.createHTMLDocument) {
          htmlDoc = document.implementation.createHTMLDocument('hogehoge');
        } else {
          htmlDoc = document.cloneNode(false);
          if (htmlDoc) {
            htmlDoc.appendChild(htmlDoc.importNode(document.documentElement, false));
          } else {
            htmlDoc = document.implementation.createDocument(null, 'html', null);
          }
        }
        var range = document.createRange();
        range.selectNodeContents(document.documentElement);
        htmlDoc.documentElement.appendChild(range.createContextualFragment(html));
        var docs = get_next_elements(htmlDoc);
        if (!docs.length) {
          error();
          return next_page_load();
        }
        target_rewrite(docs);
        docs = docs.map(function(doc) {
          return insert_parent.appendChild(document.importNode(doc, true));
        });
        if (!pages.length) {
          alert('ʕ•ᴥ•ʔ < お疲れ様');
        }
        remainNotice.innerText = '残り' + calculateRemainPages() + 'ページ';
        return loading = false;
      }
    
      function get_next_elements(doc) {
        return Array.apply(null, doc.querySelectorAll('.section'));
      }
    
      function target_rewrite(docs) {
        docs.forEach(function(doc) {
          var as = doc.getElementsByTagName('a');
          for (var i = 0, l = as.length; i < l; i++) {
            var a = as[i],
            _a = a.getAttribute('href');
            if (_a && !/^javascript:/.test(_a) && !/^#/.test(_a)) a.setAttribute('target', '_blank');
          }
        });
      }
    
      function error() {
        return console.log('error');
        State = false;
      }
    
      function terminate() {
        return console.log('terminate');
        State = false;
      }
    
      function get_latest_id(doc) {
        return doc.evaluate('number(substring-after(//*[@class="section"]/h3/a/@href, "/"))', doc, null, XPathResult.NUMBER_TYPE, null).numberValue;
      }
    
      function get_next(url) {
        var random_id = Math.floor(Math.random() * max_page_number + 1);
        if (isNaN(random_id)) {
          return error();
        }
        var x = '/' + '?page=' + random_id;
        return x;
      }
    
      function get_max_page_number(doc) {
        return doc.evaluate('number(substring-before(//*[@class="pager-r" and not(following-sibling::*)]/text(), "ページ中"))', doc, null, XPathResult.NUMBER_TYPE, null).numberValue;
      }
      return true;
    })();
    
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    RAW
    書かれたコードへの直接のリンクです。
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    文字列が圧縮された書かれたコードへのリンクです。
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    Greasemonkey 等で利用する場合の .user.js へのリンクです。
    Loader
    @require やソースコードが長い場合に多段ロードする Loader コミのコードへのリンクです。
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    コード中にコメントで @xxx と書かれたメタデータの JSON です。

History

  1. 2014/12/21 14:59:42 - 2014-12-21
  2. 2014/12/19 04:29:51 - 2014-12-19
  3. 2014/12/18 10:18:42 - 2014-12-18
  4. 2014/12/18 06:46:16 - 2014-12-18
  5. 2014/12/16 12:46:38 - 2014-12-16
  6. 2014/12/02 06:14:25 - 2014-12-02