/*
* @title endless summer on anond (choose day -> page)
* @description 増田の日付をランダムに選んで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
// 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;
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;
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 now = (new Date()).getTime();
var bottom = (new Date("September 24, 2006")).getTime();
next_day = '/' + (new Date(Math.floor(Math.random() * (now - bottom) + bottom))).toISOString().slice(0, 10).replace(/-/g, '');
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);
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));
});
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;
})();
