Facebook messages: Declutter

facebook-messages-declutter.js

// ==UserScript==
// @name     Facebook messages: Declutter
// @version  1
// @grant    none
// ==/UserScript==

const SPECS =
  [ { selectors: `._4_j5`, description: 'remove right pane', action: action_remove, enabled: true }
  ,
  ];

function action_remove(el) {
  if(el) {
    el.remove();
  }
}

function specAction(container, spec) {
  container.querySelectorAll(spec.selectors).forEach(el => {
    console.log(`specAction: ${spec.description}; ${spec.selectors}; ${el} `);
    spec.action(el);
  });
}

function go() {
  document.querySelectorAll('iframe').forEach(i => {
    SPECS.filter(spec => spec.enabled).forEach(spec => {
      specAction(i.contentWindow.document, spec);  
    });
  });
}

setInterval(go, 1000);