text-box-timer-gorilla.ts

import gorilla = require('gorilla/gorilla');

// Initialise the timer
var stateTimer: gorilla.GorillaTimerSequence;

// Add variable to determine delay
var allowedTime: number = 2000; // set original timer to 2 seconds (2000 milliseconds)

// check if textbox is selected
if ($(document.activeElement).attr("type") == "text" || $(document.activeElement).attr("type") == "textarea") {
    // updated allowedTime
    allowedTime = 5000; // 5 seconds (5000 milliseconds)
}

var stateTimer: gorilla.GorillaTimerSequence = gorilla.addTimerSequence()
    .delay(allowedTime) // wait a certain amout of time
    .then(() => {
        // transition into your next stage
        })
    })
    .run();