vignere-babbage-cipher-web/lib/index.js

The Vignere-Babbage cipher for web.

"use strict";

if (typeof document === "undefined") {
    global.document = { querySelector: function querySelector() {}, addEventListener: function addEventListener() {} };
    global.window = {};
}

var $ = require("elly"),
    vignereBabbage = require("vignere-babbage-cipher");

window.onload = function () {
    var $result = $("#result");
    var $key = $("#key");
    var $textInput = $("#text-input");

    var doOp = function doOp() {
        var key = $key.value.trim();

        if (!key) {
            $result.textContent = "Please provide a key.";
            return;
        }

        var op = $("[name='operation']:checked").value;
        $result.textContent = vignereBabbage[op]($textInput.value, key);
        if (op === "encrypt") {
            var up = $textInput.value.toUpperCase();
            if (vignereBabbage.decrypt($result.textContent, key) !== up) {
                $result.textContent = "ERROR: Failed to encrypt the text successfully. Keep writing or remove punctuation such as new lines.";
            }
        }
    };

    $textInput.addEventListener("input", doOp);
    $key.addEventListener("input", doOp);
    $(".controls").addEventListener("change", doOp);
};

module.exports = function m() {};