Tampermonkey Script; Hacky. You can drag down all-day events into the calendar as normal events. Useful for me because I use Google Calendar all day events as a todo list and I like being able to just drag in the events. Updating secTimer will change how frequently the function that makes all day events draggable runs. Also respods to some key p…

Make Google Calendar All-Day Events Draggable

// ==UserScript==
// @name         Make Google Calendar All-Day Events Draggable
// @namespace    https://calendar.google.com/calendar/*
// @version      0.1
// @description  Hacky. You can drag down all-day events into the calendar as normal events. Useful for me because I use Google Calendar all day events as a todo list and I like being able to just drag in the events. Updating secTimer will change how frequently the function that makes all day events draggable runs. Also respods to some key presses. Still very much WIP
// @author       Cody Antonio Gagnon
// @match        https://calendar.google.com/calendar/*
// @grant        none
// ==/UserScript==

let nodeList;
let i;
let cur;
let secTimer = 2;
let state;
let listenerCreated = false;
let previous = '6'; // begin with all day drag
let current = '3'; // change state to no all day drag


async function sleep(ms) {
  return new Promise(resolve => setTimeout(resolve, ms));
}
// let google calendar load...
sleep(secTimer * 1000);

function getDraggableSettings(){
    if (!listenerCreated) {
        document.addEventListener("keypress", function(e) {
           // alert(e.which);
            if (e.which == 123) {
                previous = '3';
                current = '6';
                console.log('all day drag enabled!');
            } else if (e.which == 125) {
                previous = '6';
                current = '3';
                console.log('all day drag disabled!');
            } else if (e.which == 91) {
                document.querySelector('.gb_sc').click();
            } else if (e.which == 93) {
                document.querySelector('.gcENoe').click();
            }
        });
        listenerCreated = true;
    }
    return [previous, current];
}

(function(previous, current) {
    state = getDraggableSettings();
    let nodeList = document.querySelectorAll('.eADW5d');
    i = 0;
    cur = nodeList[0];
    'use strict';
    try {
        while (cur) {
            // check if there are any all-day events first
            if (cur.childNodes[0].innerText.charAt(0) != '0') {
                let j = 0;
                let event = cur.childNodes[1].children;
                while (event[j]) {
                    // check for the event type that we want to be able to drag
                    if (event[j].getAttribute("data-dragsource-type") == state[0]) {
                        event[j].setAttribute("data-dragsource-type", state[1]);
                        console.log('changed!' + state[0] + " to " + state[1]);
                    }
                    j++;
                }
            }
            i++;
            cur = nodeList[i];
        }
    } catch (e) {}
    // recursively call this anonymous function again
    setTimeout(arguments.callee, secTimer * 1000, previous, current);
})();