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Stack Overflow reformat for Evernote

Format contents on Stack Enchange websites such as stackoverflow.com and askubuntu.com for easy saving to Evernote.
Stel een vraag, plaats een beoordeling of rapporteer dit script.
Regels afbreken
// ==UserScript==
// @name         Stack Overflow reformat for Evernote
// @namespace    https://greasyfork.org/zh-TW/scripts/388100
// @version      1.0
// @description  Format contents on Stack Enchange websites such as stackoverflow.com and askubuntu.com for easy saving to Evernote.
// @author       twchen
// @include      https://stackoverflow.com/questions/*
// @include      https://*.stackexchange.com/questions/*
// @include      https://superuser.com/questions/*
// @include      https://serverfault.com/questions/*
// @include      https://askubuntu.com/questions/*
// @run-at       document-idle
// ==/UserScript==

(function () {
  "use strict";
  const description = document.querySelector("#question .post-layout");
  const body = document.body;
  let saveDesc = true;
  const answersToSave = [];

  function addLinks() {
    const answers = document.querySelectorAll(".answer > .post-layout");
    answers.forEach(ans => {
      const text = ans.querySelector(".answercell .post-text");
      const menu = ans.querySelector(".post-menu");
      const saveAnsLink = document.createElement("a");
      saveAnsLink.href = "#";
      saveAnsLink.text = 'save this answer';
      saveAnsLink.onclick = event => {
        event.preventDefault();
        answersToSave.push(ans);
        saveDesc = false;
        save();
      };
      const saveQALink = document.createElement('a');
      saveQALink.href = '#';
      saveQALink.text = 'save this Q&A';
      saveQALink.onclick = event => {
        event.preventDefault();
        answersToSave.push(ans);
        save();
      };
      menu.append(saveAnsLink, saveQALink);
    });

    const div = document.createElement('div');
    div.classList.add('pl8', 'aside-cta', 'grid--cell');
    const chooseLink = document.createElement('a');
    chooseLink.href = "#";
    chooseLink.classList.add("d-inline-flex", "ai-center", "ws-nowrap", "s-btn", "s-btn__primary");
    chooseLink.text = "Save Multiple Answers";
    chooseLink.onclick = event => {
      event.preventDefault();
      startChoosing();
    };
    div.appendChild(chooseLink);
    const header = document.querySelector('#question-header');
    header.append(div);
  }

  function startChoosing() {
    const votingContainers = document.querySelectorAll('.js-voting-container');
    votingContainers.forEach((container, i) => {
      const checkbox = document.createElement('input');
      checkbox.type = 'checkbox';
      checkbox.id = `checkbox${i}`;
      checkbox.style.margin = 'auto';
      const label = document.createElement('label');
      label.htmlFor = `checkbox${i}`;
      label.innerText = 'Keep';
      label.style.margin = 'auto';
      container.prepend(checkbox, label);
    });

    const doneButton = document.createElement('button');
    doneButton.innerText = "Done";
    Object.assign(doneButton.style, {
      position: 'fixed',
      right: '2rem',
      top: '50%',
      zIndex: '100'
    });
    doneButton.onclick = event => {
      event.preventDefault();
      doneChoosing();
    };
    body.appendChild(doneButton);
  }

  function doneChoosing() {
    const question = document.querySelector('#question');
    const questionCheckbox = question.querySelector('.js-voting-container input[type="checkbox"]');
    saveDesc = questionCheckbox.checked;
    const answers = document.querySelectorAll(".answer > .post-layout");
    answers.forEach(ans => {
      const text = ans.querySelector(".answercell .post-text");
      const checkbox = ans.querySelector(".js-voting-container input[type='checkbox']");
      if (checkbox.checked) {
        answersToSave.push(ans);
      }
    });
    if (answersToSave.length == 0) {
      alert('Choose at least one answer to save!');
    } else {
      save();
    }

  }

  function save() {
    expandComments();
    removeAllChildren(body);
    const div = document.createElement("div");
    div.style.margin = 'auto';
    const posts = saveDesc ? [description, ...answersToSave] : answersToSave;
    posts.forEach((post, i) => {
      if(i > 0 || (!saveDesc && answersToSave.length > 1)){
        const hr = document.createElement("hr");
        hr.style.height = '3px';
        hr.style.marginTop = '4rem';
        div.appendChild(hr);
      }
      console.log(post);
      const checkbox = post.querySelector('input[id^=checkbox]');
      if (checkbox) {
        checkbox.remove();
      }
      const checkboxLabel = post.querySelector('label[for^=checkbox]');
      if (checkboxLabel) {
        checkboxLabel.remove();
      }
      div.appendChild(post);
    });
    body.appendChild(div);
  }

  function expandComments() {
    const expandLinks = document.getElementsByClassName('js-show-link comments-link');
    for (let i = 0; i < expandLinks.length; i++) {
      expandLinks[i].click();
    }
  }

  function removeAllChildren(el) {
    while (el.firstChild) {
      el.removeChild(el.firstChild);
    }
  }

  addLinks();
})();
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