simulate_click.js

/**
 * https://stackoverflow.com/questions/37098405/javascript-queryselector-find-div-by-innertext
 * https://developers.google.com/gsuite/add-ons/concepts/menus
 * https://stackoverflow.com/questions/51848258/google-docs-programmatically-send-mouse-click-to-an-item-in-outline-pane
 * https://stackoverflow.com/a/43331339/209
 *  
 * */


var simulateMouseEvent = function(element, eventName, coordX, coordY) {
  element.dispatchEvent(new MouseEvent(eventName, {
    view: window,
    bubbles: true,
    cancelable: true,
    clientX: coordX,
    clientY: coordY,
    button: 0
  }));
};

var simulateClick = function(element) {
  var box = element.getBoundingClientRect(),
    coordX = box.left + (box.right - box.left) / 2,
    coordY = box.top + (box.bottom - box.top) / 2;

  simulateMouseEvent (element, "mousedown", coordX, coordY);
  simulateMouseEvent (element, "mouseup", coordX, coordY);
  simulateMouseEvent (element, "click", coordX, coordY);
}

var findItemContaining = function(selector, text) {
  var elements = document.querySelectorAll(selector);
  return Array.prototype.filter.call(elements, function(element){
    return RegExp(text).test(element.textContent);
  });
}


// Open addon
var addonMenu = document.getElementById('docs-extensions-menu')
simulateClick(addonMenu);


// Get the Addons menu root item
var acAddonItem = null;
var addonMenuItems = document.querySelector('[aria-label="Get add-ons... g"').parentElement.parentElement.parentElement;
addonMenuItems.querySelectorAll('.goog-menuitem').forEach((entry) => {
  if (entry.innerText.startsWith('Copy of AC ustwo')) 
    acAddonItem = entry;
});

simulateClick(acAddonItem);

// AC Connect Addon sub menu is now open
// We should load the addon now

// Now look for the "Open Audience Connect" item
var openAcItem = findItemContaining('.goog-menuitem-content','Open Audience Connect')[0]
simulateClick(openAcItem);