sendtext.js

var TextTransmitter = (function() {
    Quiet.init({
        profilesPrefix: "/quiet-js/",
        memoryInitializerPrefix: "/quiet-js/",
        libfecPrefix: "/"
    });
    var btn;
    var textbox;
    var warningbox;
    var transmit;

    function onTransmitFinish() {
        textbox.focus();
        btn.addEventListener('click', onClick, false);
        btn.disabled = false;
        var originalText = btn.innerText;
        btn.innerText = btn.getAttribute('data-quiet-sending-text');
        btn.setAttribute('data-quiet-sending-text', originalText);
    };

    function onClick(e) {
        e.target.removeEventListener(e.type, arguments.callee);
        e.target.disabled = true;
        var originalText = e.target.innerText;
        e.target.innerText = e.target.getAttribute('data-quiet-sending-text');
        e.target.setAttribute('data-quiet-sending-text', originalText);
        var payload = textbox.value;
        if (payload === "") {
            onTransmitFinish();
            return;
        }
        transmit.transmit(Quiet.str2ab(payload));
    };

    function onQuietReady() {
        var profilename = document.querySelector('[data-quiet-profile-name]').getAttribute('data-quiet-profile-name');
        transmit = Quiet.transmitter({
            profile: profilename,
            clampFrame: false,
            onFinish: onTransmitFinish,
            downloadableTransmissionFileName: 'transmission.wav',
            downloadTransmission: true,
        });
        btn.addEventListener('click', onClick, false);
    };

    function onQuietFail(reason) {
        console.log("quiet failed to initialize: " + reason);
        warningbox.classList.remove("hidden");
        warningbox.textContent = "Sorry, it looks like there was a problem with this example (" + reason + ")";
    };

    function onDOMLoad() {
        btn = document.querySelector('[data-quiet-send-button]');
        textbox = document.querySelector('[data-quiet-text-input]');
        warningbox = document.querySelector('[data-quiet-warning]');
        Quiet.addReadyCallback(onQuietReady, onQuietFail);
    };

    document.addEventListener("DOMContentLoaded", onDOMLoad);
})();