[Facebook Audience Insights: Copy Page Likes] #sb #userscripts

fbai_copy_likes.user.js

// ==UserScript==
// @id           [email protected]
// @name         Facebook Audience Insights: Copy Page Likes
// @namespace    https://jnv.github.io
// @version      2017.10.11
// @description  Copy Page Likes table in Facebook Audience Insights
// @author       Jan Vlnas
// @match        https://www.facebook.com/ads/audience-insights/*
// @grant        GM_setClipboard
// @run-at       document-idle
// @license      CC0 1.0; https://creativecommons.org/publicdomain/zero/1.0/
// ==/UserScript==

const SEL = {
  root: '._5p02:nth-last-of-type(1)',
  table: 'table',
  buttonHolder: '._-0c',
  more: 'button[type="submit"]',
  rows: 'tbody tr',
};
const INJECT_SEL = `${SEL.root} ${SEL.table}`;
const COPY_BTN_ID = 'js-tamper-copybtn';
const ROWS_LIMIT = 30;
const PATH_MATCH = /\/interests/;

function createCopyButton () {
  const btn = document.createElement('button');
  btn.type = 'button';
  btn.textContent = '🦄 Copy';
  btn.style = 'cursor: pointer;';
  btn.id = COPY_BTN_ID;

  return btn;
}

function textContent (element) {
  return element.textContent;
}

function firstTextNodeContent (node) {
  'use strict';
  const iter = document.createNodeIterator(node, NodeFilter.SHOW_TEXT);
  const first = iter.nextNode();
  return first.textContent;
}

function parseRow (rowNode, cols) {
  const cells = Array.from(rowNode.querySelectorAll('td'));
  const rowObj = {};
  for (let i = 0; i < cells.length; i++) {
    const node = cells[i];
    const col = cols[i];
    rowObj[col] = node.textContent;
    const link = node.querySelector('a');
    if (link) {
      rowObj.URL = link.href;
    }
  }
  return rowObj;
}

function parseTable (table) {
  const th = Array.from(table.querySelectorAll('thead th'));
  const rows = Array.from(table.querySelectorAll('tbody tr'));

  const cols = th.map(firstTextNodeContent);
  const rowsData = rows.map(row => parseRow(row, cols));

  return rowsData;
}

function formatRow (row) {
  return row.join('\t');
}

function formatTableOutput (data) {
  const resultCols = ['Page', 'URL', 'Relevance', 'Audience', 'Facebook', 'Affinity'];
  const rows = data.map(row => {
    return formatRow(resultCols.map(col => row[col]));
  });
  // Add header
  // rows.unshift(formatRow(resultCols));
  return rows.join('\n');
}

function copyTable (table) {
  const data = parseTable(table);
  const count = data.length;
  const output = formatTableOutput(data);
  GM_setClipboard(output);
  return count;
}

function unrollTable (root, table) {
  const rowsCount = () => table.querySelectorAll(SEL.rows).length;
  const moreBtn = () => root.querySelector(SEL.more);
  const isTop10Btn = () => /10/.test(moreBtn().textContent);
  const shouldContinue = () => rowsCount() < ROWS_LIMIT && !isTop10Btn();
  while (shouldContinue()) {
    moreBtn().click();
  }
}

function inject () {
  'use strict';
  const root = document.querySelector(SEL.root);
  if (!root) {
    return false;
  }
  const table = root.querySelector(SEL.table);
  if (!table) {
    return false;
  }

  const btnHolder = root.querySelector(SEL.buttonHolder);

  const copyBtn = createCopyButton();
  copyBtn.onclick = () => {
    unrollTable(root, table);
    copyTable(table);
  };
  btnHolder.appendChild(copyBtn);

  return true;
}

function canInject () {
  return PATH_MATCH.test(window.location.pathname) &&
    !document.getElementById(COPY_BTN_ID) &&
    document.querySelector(INJECT_SEL);
}

function tryInject () {
  'use strict';
  if (canInject()) {
    inject();
    window.setTimeout(tryInject, 5000);
  } else {
    window.setTimeout(tryInject, 1000);
  }
}

tryInject();