Continue from the Post Reblogged

continue_from_the_post_reblogged.user.js

// ==UserScript==
// @name           Continue from the Post Reblogged
// @namespace      http://saitamanodoruji.tumblr.com/
// @description    Press "Shift + B", and Back to the Dashboard where the reblogged-post on the current-node is from.
// @include        http://www.tumblr.com/dashboard*
// @include        http://www.tumblr.com/show/*
// @include        http://www.tumblr.com/blog/*
// @include        http://www.tumblr.com/likes*
// @include        https://www.tumblr.com/dashboard*
// @include        https://www.tumblr.com/show/*
// @include        https://www.tumblr.com/blog/*
// @include        https://www.tumblr.com/likes*
// @version        0.1.10
// @update         2016-03-26
// ==/UserScript==
//
// This script is dependent on
//   -Minibuffer http://userscripts.org/scripts/show/11759
//   -LDRize http://userscripts.org/scripts/show/11562
//
// is_reblog なポストの左上に出る You reblogged someone の
// someone のリンクから post id を取って、そこから Dashboard に潜る。
//
// つまり、「今夜はこれ以上潜れない、これが Last Reblog だ」となった場合に、
// 翌朝 http://www.tumblr.com/tumblelog/{yourID} を開いて
// その Last Reblog のところで Shift + B を押せば、
// 昨晩の続きが新しいタブで開くので、そこからまた潜ることができる。

(function() {
  const KEY_TO_OPEN ='B';

  var boot = function(ev) {
    if (ev) window.removeEventListener('GM_MinibufferLoaded', boot, false);
    with (sharedObject.Minibuffer) {
      addShortcutkey({
        key: KEY_TO_OPEN,
        description: 'continueFromThePostReblogged',
        command: function() {
          try {
            execute( 'continueFromThePostReblogged', execute('current-node'));
          } catch (e) { console.log(e); GM_log(e); }
        },
      });

      addCommand({
        name: 'continueFromThePostReblogged',
        command: function(stdin) {
          try {
            if (!stdin.length) stdin = window.Minibuffer.execute('current-node');
            var url = $X(
              [ './/div[contains(concat(" ", @class, " "), " post_info ")]',
                '//span[contains(concat(" ", @class, " "), " reblog_source ")]',
                '//a[contains(concat(" ", @class, " "), " post_info_link ")]' ].join('')
              , stdin[0])[0].toString();
            var postId = parseInt(url.match(/^http:\/\/[^\/]+\/post\/(\d+)/)[1]) + 1;
            GM_openInTab('https://www.tumblr.com/dashboard/2/' + postId, true);
            return stdin;
          } catch(e) { console.log(e); GM_log(e); }
          return stdin;
        },
      });
    }
  }

  if (sharedObject.Minibuffer) {
    boot();
  } else {
    window.addEventListener('GM_MinibufferLoaded', boot, false);
  }
})();