socvr-open-selected-questions.user.js

// ==UserScript==
// @name         Open Multiple Question Links
// @namespace    http://roub.net/
// @version      0.9.3
// @description  open multiple selected unique question links, skipping non-questions
// @author       Paul Roub
// @contributor  Mogsdad
// @include      *://chat.stackoverflow.com/rooms/41570/so-close-vote-reviewers
// @include      *://chat.stackoverflow.com/search*
// @grant        GM_openInTab
// ==/UserScript==

// tested on:
//   Chrome 45.0.2454.101 w/TamperMonkey 3.11
//   Firefox 41.0 w/GreaseMonkey 3.4.1

document.addEventListener("selectionchange", catchSelectionChange);

let picker = null,
  pickerChild = null,
  pickerLink = null,
  ls = [],
  pending = false;

function catchSelectionChange() {
  if (pending) {
    return;
  }

  pending = true;

  // debounce a bit
  setTimeout(function() {
    pending = false;
    const selection = window.getSelection();

    if (selectionIsEmpty(selection)) {
      hidePicker();
    } else {
      showPicker(selection);
    }
  }, 50);
}

function selectionIsEmpty(sel) {
  return (!sel) || (sel.rangeCount < 1);
}

function hidePicker() {
  if (picker) {
    picker.style.display = 'none';
  }
}

function showPicker(selection) {
  if (!picker) {
    picker = document.createElement('div');
    picker.style.position = 'fixed';
    picker.style.top = 0;
    picker.style.right = 0;
    picker.style.backgroundColor = '#FFF';
    picker.style.color = '#000';
    picker.style.border = '1px solid #666';
    picker.style.zIndex = 1000;
    picker.style.cursor = 'pointer';
    picker.style.padding = '.5em';
    document.body.appendChild(picker);

    pickerLink = document.createElement('a');
    picker.appendChild(pickerLink);

    pickerLink.addEventListener('mousedown', function(e) {
      openLinks(ls);
      e.stopPropagation();
      e.preventDefault();
      return false;
    });

    pickerChild = document.createElement('div');
    pickerChild.style.display = 'none';
    picker.appendChild(pickerChild);
  }

  const r = selection.getRangeAt(0);
  pickerChild.innerHTML = '';
  pickerChild.appendChild(r.cloneContents());

  ls = getQLinks(r);

  if (ls.length > 0) {
    pickerLink.innerHTML = '[' + ls.length + ']';
    const qtitle = (ls.length > 1) ? ' selected questions' : ' selected question';
    pickerLink.title = 'Open ' + ls.length + qtitle + ' in tabs';
    picker.style.display = 'block';
  } else {
    hidePicker();
  }
}

function getQLinks(range) {
  var container = range.commonAncestorContainer;

  if ((! container) || (! container.getElementsByTagName))
      return [];

  var as = container.getElementsByTagName('a');
  var unique = [];
  qs = Array.prototype.slice.call(as).filter(function(el) {
    var postRe = /stackoverflow\.com\/[aq](uestions)?\/\d/;
    if (range.intersectsNode(el) && el.offsetParent && el.href.match(postRe)) {
      var id = el.href.match(/\d+/)[0];
      if (unique.indexOf(id) == -1) {
        unique.push(id);
        return true;
      }
    }
    return false;
  });

  return qs;
}

function openLink(q) {
  if ((typeof(GM) != 'undefined') && GM.openInTab) {
    GM.openInTab(q.href, true);
  } else if (typeof(GM_openInTab) != 'undefined') {
    GM_openInTab(q.href, true);
  }
}

function openLinks(qs) {
  console.log(qs);
  if (qs.length) {
    qs.forEach(
      function(q) {
        openLink(q);
      }
    );
  }
}