hooks.js

function addHook(hook, eventName) {
    let event = window[eventName];

    window[eventName] = function() {
        setTimeout(() => {
            try {
                hook.apply(null, arguments);
            } catch (e) {
                console.error(e);
            }
        }, 0);

        event.apply(null, arguments);      
    };
}

function addHookBefore(hook, eventName) {
    let event = window[eventName];

    window[eventName] = function() {
        try {
            hook.apply(null, arguments);
        } catch (e) {
            console.error(e);
        }
        event.apply(null, arguments);
    };
}

function addHookAfter(hook, eventName) {
    let event = window[eventName];

    window[eventName] = function() {
        event.apply(null, arguments);
        try {
            hook.apply(null, arguments);
        } catch (e) {
            console.error(e);
        }
    };
}