endless summer on anond (today -> past year)

by yuta25 2014-12-21 [2014/12/21 23:59:42]

昔の今日の増田ページをランダムでAutoPagerize風

@@ -12,11 +12,6 @@
 
 // bookmark
 // autopager part from "twitter.AutoPager" : http://userscripts.org/scripts/review/47998
-// random choice part from ReblogMachine : http://reblog.machine.mamemomonga.com/
-//   -> ReblogMachine.endless_summer#choice : http://reblog.machine.mamemomonga.com/js/ReblogMachine.js
-// history.pushState/history.replaceState : http://d.hatena.ne.jp/javascripter/20100404/1270411268
-// show page regexp from "Tumblr Dashboard Filter by Post Type" : http://userscripts.org/scripts/review/40794
-// Exponential Endless Summer version 2013.08 by saitamanodoruji : http://tumblr.g.hatena.ne.jp/saitamanodoruji/20130831/1377961157
 
 (function() {
   var start_url = location.href;
@@ -24,6 +19,7 @@
   var State = true;
   var BASE_REMAIN_HEIGHT = 10000;
   var loading = false;
+  var visited = [];
 
   var last_element = (function() {
     var a = get_next_elements(document);
@@ -76,19 +72,24 @@
     var pager_r = doc.querySelectorAll('.pager-r');
     var max = +pager_r[pager_r.length - 1].innerText.match(/^[0-9]*/)[0];
     var next = next_day + '?page=' + Math.floor(Math.random() * max + 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);
+    if (visited.indexOf(next) < 0) {
+        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);
+        visited.push(next);
+    } else {
+        next_day_load();
+    }
   }
 
   function load(x) {

• /*
   * @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 visited = [];
  
    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;
  
    next_day_load();
  
    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() {
      var today = new Date();
      var thisYear = today.getYear();
      // var bottomYear = (new Date("September 24, 2006")).getYear();
      var bottomYear = (today.getMonth() < 9 || (today.getMonth() === 10 && today.getDay() < 24)) ? 107 : 106;
      var nextYear = 1900 + bottomYear + Math.floor(Math.random() * (thisYear - bottomYear + 1));
      next_day = '/' + nextYear + today.toISOString().slice(5,7) + today.toISOString().slice(8, 10);
      var x = new XMLHttpRequest();
      x.onload = function(e) {
        if (x.status <= 200 && x.status < 300) {
          next_page_load(e);
        } else {
          error();
          next_day_load();
        }
      };
      loading = true;
      x.open('GET', next_day, true);
      x.responseType = 'document';
      x.send(null);
    }
  
    function next_page_load(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];
      var next = next_day + '?page=' + Math.floor(Math.random() * max + 1);
      if (visited.indexOf(next) < 0) {
          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);
          visited.push(next);
      } else {
          next_day_load();
      }
    }
  
    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));
      });
      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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  Permalink

  このページへの個別リンクです。

  RAW

  書かれたコードへの直接のリンクです。

  Packed

  文字列が圧縮された書かれたコードへのリンクです。

  Userscript

  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。

  Metadata

  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。