68 lines
2.3 KiB
JavaScript
68 lines
2.3 KiB
JavaScript
function selectQuizOption(selectedId) {
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const currentLevel = selectedId.split('/').length - 1;
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$('.option-row').each(function (i) {
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const rowId = $(this).attr('data-quiz-id');
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// don't hide option rows if it has a lower level
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// e.g. when clicking "x86_64" under Linux, we don't want to hide the operating system row
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if ($(this).attr('data-level') < currentLevel) {
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return;
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}
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if (rowId === selectedId) {
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$(this).removeClass('hide');
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$(this).find('.option-button').removeClass('active');
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return;
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}
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// hide all other option rows
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$(this).addClass('hide');
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});
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// hide other answers
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$('.quiz-instruction').addClass('hide');
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// show the selected answer
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$('.quiz-instruction[data-quiz-id=\'' + selectedId + '\']').removeClass('hide');
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const buttons = $('.option-row[data-quiz-id=\'' + selectedId + '\']').find('.option-button');
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// auto-select the first option for the user, to reduce the number of clicks
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if (buttons.length > 0) {
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const btn = buttons.first();
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btn.addClass('active');
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selectQuizOption(btn.attr('data-quiz-id'));
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}
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}
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function initQuiz() {
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try {
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$('.option-button').click(function(e) {
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$(this).parent().find('.option-button').removeClass('active');
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$(this).addClass('active');
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const dataContainerId = $(this).attr('data-quiz-id');
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selectQuizOption(dataContainerId);
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});
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const userOS = getQuizUserOS();
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// auto-select the OS for user
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const btn = $('.option-button[data-quiz-id=\'/' + userOS + '\']').first();
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btn.addClass('active');
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selectQuizOption(btn.attr('data-quiz-id'));
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} catch(e) {
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const elements = document.getElementsByClassName("quiz-instruction");
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for (let element of elements) {
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element.classList.remove("hide");
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}
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}
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}
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const getQuizUserOS = () => {
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let os = ['Linux', 'Mac', 'Windows'];
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let userAgent = navigator.userAgent;
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for (let currentOS of os) {
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if (userAgent.indexOf(currentOS) !== -1) {
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if (currentOS === 'Mac') {
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// return the official OS name "macOS" instead
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return 'macOS';
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}
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return currentOS;
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}
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}
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return 'Linux';
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}
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