Google Calendar Tasks Killer

gcal-kill-tasks.user.js

// ==UserScript==
// @name Google Calendar Tasks Killer
// @namespace http://zarjay.net/
// @description Removes the "Tasks" item from the "My Calendar" section of Google Calendar
// @match https://www.google.com/calendar/*
// @version 1.0
// ==/UserScript==


// Removes the "Tasks" item from "My Calendar"
function killTasks() {
    var tasksLabel = document.getElementById('label-dGFza3NAdGFza3MuZ29vZ2xlLmNvbQ');
    if (tasksLabel) tasksLabel.parentNode.style.display = 'none';
}

// Waits for synchronous code to finish executing before calling killTasks()
function asyncKillTasks() {
    setTimeout(killTasks, 0);
}

function init() {
    // Kill Tasks!
    killTasks();

    // Google Calendar will try to bring Tasks back every time you select
    // a calendar. This will make sure it stays hidden.
    var myCalendars = document.getElementById('calendars_my');
    if (myCalendars) myCalendars.addEventListener('mousedown', asyncKillTasks);

    var otherCalendars = document.getElementById('calendars_fav');
    if (otherCalendars) otherCalendars.addEventListener('mousedown', asyncKillTasks);
}

// Wait a bit before executing (Google Calendar needs some time to load)
setTimeout(init, 1500);