// ==UserScript==
// @name        Messenger.com Sidebar Hider
// @namespace   messengerSidebarHider
// @match       https://www.messenger.com/*
// @match       https://messenger.com/*
// @match       https://m.me/*
// @description Hide sidebars in FB Messenger with Alt+Shift+ArrowLeft and Alt+Shift+ArrowRight
// @version     1.0.1
// @grant       none
// @run-at      document-idle
// @icon        view-source:https://static.xx.fbcdn.net/rsrc.php/y7/r/O6n_HQxozp9.ico
// @author      Adam Carmichael <[email protected]>
// ==/UserScript==
function toggleElements(e) {
if(e === null) {
console.warn("mSH: toggleElements received a null");
return;
}
if(e.length === 0) {
console.warn("mSH: toggleElements received zero elements");
return;
}
for(var i = 0; i < e.length; i++)
{
element = e.item(i);
element.style.display = (element.style.display == 'none' ? 'block' : 'none');
}
}
function keyEvt(e) {
var report =
"mSH: " +
( e.ctrlKey  ? "Control " : "" ) +
( e.shiftKey ? "Shift "   : "" ) +
( e.altKey   ? "Alt "     : "" ) +
( e.metaKey  ? "Meta "    : "" ) +
e.code + " " +
"key was pressed.";
console.debug(report);
if(e.altKey && e.shiftKey && e.code === "ArrowLeft") {
// alt+shift+left: hide conversation list
elements = document.getElementsByClassName('_1enh');
toggleElements(elements);
console.debug("mSH: TRIGGER LEFT!");
}
if (e.altKey && e.shiftKey && e.code === "ArrowRight") {
// alt+shift+right: hide right hand bar
element = document.getElementsByClassName('_4_j5');
toggleElements(element);
console.debug("mSH: TRIGGER RIGHT!");
}
}
window.addEventListener('keydown', keyEvt, true);