96 lines
3.3 KiB
JavaScript
96 lines
3.3 KiB
JavaScript
// @license magnet:?xt=urn:btih:87f119ba0b429ba17a44b4bffcab33165ebdacc0&dn=freebsd.txt FreeBSD
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/** @type {HTMLElement} */
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const quizfield = query('#quiz');
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/** @type {HTMLElement} */
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const answerfield = query('#answer');
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/** @type {HTMLElement} */
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const submit = query('#submit');
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/** @type {HTMLElement} */
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const nextquiz = query('#next');
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resources.then(start);
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/**
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*
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* @param {Resources} param0
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*/
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function start({ meta, data }) {
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const selections = query('#selections');
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const topics = Object.keys(data);
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for (const key in data) {
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const label = create('label');
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const check = create('input');
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check.type = 'checkbox';
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check.checked = true;
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check.addEventListener('change', () => {
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check.checked
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? topics.push(key)
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: topics.splice(topics.indexOf(key), 1);
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putquiz();
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});
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label.appendChild(check);
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label.appendChild(Object.assign(create('span'), { innerText: key }));
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selections.appendChild(label);
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}
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const subs = {};
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// FIXME: badly made variable scope
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let challenge;
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for (const topic of topics)
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subs[topic] = Object.keys(data[topic]);
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function putquiz() {
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const topic = select(topics);
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const subtopic = select(subs[topic]);
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// TODO: better element removal
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quizfield.innerHTML = '';
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/** @type {Quiz} */
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const quiz = select(data[topic][subtopic]);
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const title = select(quiz.topic);
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const info = getinfo(meta, title, quiz.sub);
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const table = mkitem(quiz.from, quiz.to, info);
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quizfield.appendChild(create('hr'));
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quizfield.appendChild(Object.assign(create('p'), { innerText: hold(title, info) }));
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quizfield.appendChild(table);
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quizfield.appendChild(create('hr'));
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challenge = '考点：' + topic + ' · ' + subtopic;
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answerfield.innerHTML = '';
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let index = 1;
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for (const label of quiz.from.concat(quiz.to)) {
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const answer = label.split('——')[0].replace(/%[^ ]+/g, '');
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const input = create('input');
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input.name = index++;
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input.type = 'text';
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input.setAttribute('data-answer', answer);
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answerfield.appendChild(input);
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}
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query('#answer > input').focus();
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}
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function checkanswer() {
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let stay = false;
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for (const input of Array.from(document.querySelectorAll('#answer > input'))) {
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if (input.value === input.getAttribute('data-answer')) {
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input.className = 'right';
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} else if (input.value === '') {
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input.focus();
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return;
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} else {
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input.className = 'wrong';
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stay = true;
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}
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}
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for (const abbr of Array.from(document.querySelectorAll('#quiz abbr'))) {
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abbr.classList.add('shown');
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}
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answerfield.appendChild(Object.assign(create('p'), { innerText: challenge }));
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if (!stay) setTimeout(putquiz, 3000);
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}
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submit.addEventListener('click', checkanswer);
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answerfield.addEventListener('keyup', function(event) {
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if (event.key === 'Enter')
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checkanswer();
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});
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nextquiz.addEventListener('click', putquiz);
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putquiz();
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}
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// @license-end
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