webclient/js/GUI/Screen/Settings.js

import I18n;
import register from GUI.Screen;
import Save;

var button;

return {
	init: init
};

function init() {
	register('settings');
	var exportRoot = document.getElementById('export');
	var label = exportRoot.getElementsByTagName('span')[0];
	button = exportRoot.getElementsByTagName('a')[0];

	label.textContent = I18n.get('exportLabel');
	button.textContent = I18n.get('doExport');
	button.addEventListener('click', doExport);
}

function doExport() {
	var data = encodeURIComponent(JSON.stringify(Save.get()));
	button.href = 'data:application/json,' + data;
}