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Probability-and-Statistics-…/_static/pretext/js/pretext-webwork/2.19/pretext-webwork.js
T
2026-01-11 13:24:27 -05:00

678 lines
32 KiB
JavaScript
Executable File

//Critical:
// TODO: Think about what should be done for an essay question.
//Accessibility:
//Enhancement:
// TODO: Have randomize check that new seed is actually producing new HTML.
// TODO: Don't offer randomize button unless we know a new version can be produced after trying a few seeds.
//Styling:
// TODO: Review all styling in all scenarios (staged/not, correct/partly-correct/incorrect/blank, single/multiple)
async function handleWW(ww_id, action) {
const ww_container = document.getElementById(ww_id);
const ww_domain = ww_container.dataset.domain;
const ww_processing = 'webwork2';
const ww_origin = ww_container.dataset.origin;
const ww_problemSource = ww_container.dataset.problemsource;
const ww_sourceFilePath = ww_container.dataset.sourcefilepath;
const ww_course_id = ww_container.dataset.courseid;
const ww_user_id = ww_container.dataset.userid;
const ww_passwd = ww_container.dataset.coursepassword;
const localize_submit = ww_container.dataset.localizeSubmit || "Submit";
const localize_check_responses = ww_container.dataset.localizeCheckResponses || "Check Responses";
const localize_reveal = ww_container.dataset.localizeReveal || "Reveal";
const localize_randomize = ww_container.dataset.localizeRandomize || "Randomize";
const localize_reset = ww_container.dataset.localizeReset || "Reset";
const runestone_logged_in = (typeof eBookConfig !== 'undefined' && eBookConfig.username !== '');
// will be null on pages generated prior to late December 2022
const activate_button = document.getElementById(ww_id + '-button')
// Set the current seed
if (!action) {
ww_container.dataset.current_seed = ww_container.dataset.seed;
if (runestone_logged_in) {
ww_container.dataset.current_seed = webworkSeedHash(eBookConfig.username + ww_container.dataset.current_seed);
}
}
else if (action == 'randomize') ww_container.dataset.current_seed = Number(ww_container.dataset.current_seed) + 100;
let loader = document.createElement('div');
loader.style.position = 'absolute';
loader.style.left = 0;
loader.style.top = 0;
loader.style.backgroundColor = 'rgba(0.2, 0.2, 0.2, 0.4)';
loader.style.color = 'white';
loader.style.width = '100%';
loader.style.height = '100%';
loader.style.display = 'flex';
loader.style.alignItems = 'center';
loader.style.justifyContent = 'center';
loader.style.marginTop = '0';
loader.tabIndex = -1;
const loaderText = document.createElement('span');
loaderText.textContent = 'Loading';
loaderText.style.fontSize = '2rem';
loader.appendChild(loaderText);
ww_container.appendChild(loader);
loader.focus();
if (!action) {
// Determine if static version shows hints, solutions, or answers and save that information in the container dataset for later runs.
ww_container.dataset.hasHint = ww_container.getElementsByClassName('hint').length > 0;
ww_container.dataset.hasSolution = ww_container.getElementsByClassName('solution').length > 0;
ww_container.dataset.hasAnswer = ww_container.getElementsByClassName('answer').length > 0;
// Get (possibly localized) label text for hints and solutions.
ww_container.dataset.hintLabelText = ww_container.dataset.hasHint == 'true'
? ww_container.querySelectorAll('.hint-knowl span.type, details.hint span.type')[0].textContent : 'Hint';
ww_container.dataset.solutionLabelText = ww_container.dataset.hasSolution == 'true'
? ww_container.querySelectorAll('.solution-knowl span.type, details.solution span.type')[0].textContent : 'Solution';
ww_container.tabIndex = -1;
}
let url;
if (ww_processing == 'webwork2') {
url = new URL(ww_domain + '/webwork2/render_rpc');
}
let formData = new FormData();
let generatedPG = 'generated/webwork/pg/';
if (runestone_logged_in) {
generatedPG = `/ns/books/published/${eBookConfig.basecourse}/${generatedPG}`;
}
if (action == 'check' || action =='reveal') {
const iframe = ww_container.querySelector('.problem-iframe');
formData = new FormData(iframe.contentDocument.getElementById(ww_id + "-form"));
formData.set("answersSubmitted", '1');
formData.set('WWsubmit', "1");
if (action == 'reveal' && ww_container.dataset.hasAnswer == 'true') {
formData.set('WWcorrectAnsOnly', "1");
}
if (ww_origin == 'generated') {
const rawProblemSource = await fetch(generatedPG + ww_problemSource).then((r) => r.text());
formData.set("rawProblemSource", rawProblemSource);
}
else if (ww_origin == 'webwork2') formData.set("sourceFilePath", ww_sourceFilePath);
} else {
formData.set("problemSeed", ww_container.dataset.current_seed);
if (ww_origin == 'generated') {
const rawProblemSource = await fetch(generatedPG + ww_problemSource).then((r) => r.text());
formData.set("rawProblemSource", rawProblemSource);
}
else if (ww_origin == 'webwork2') formData.set("sourceFilePath", ww_sourceFilePath);
formData.set("answersSubmitted", '0');
formData.set("displayMode", "MathJax");
formData.set("courseID", ww_course_id);
formData.set("user", ww_user_id);
formData.set("userID", ww_user_id);
formData.set("passwd", ww_passwd);
formData.set("disableCookies", '1');
formData.set("outputformat", "raw");
// note ww_container.dataset.hasSolution is a string, possibly 'false' which is true
formData.set("showSolutions", ww_container.dataset.hasSolution == 'true' ? '1' : '0');
formData.set("showHints", ww_container.dataset.hasHint == 'true' ? '1' : '0');
formData.set("problemUUID",ww_id);
}
// If in Runestone, check if there are previous answer submissions and get them now to use in the form.
let checkboxesString = '';
if (runestone_logged_in && !action) {
const answersObject = (wwList[ww_id.replace(/-ww-rs$/,'')].answers ? wwList[ww_id.replace(/-ww-rs$/,'')].answers : {'answers' : [], 'mqAnswers' : []});
const previousAnswers = answersObject.answers;
if (previousAnswers !== null) {
formData.set('WWsubmit', 1);
}
for (const answer in previousAnswers) {
if (previousAnswers[answer].constructor === Array) {
for (const k in previousAnswers[answer]) {
checkboxesString += '&';
checkboxesString += answer;
checkboxesString += '=';
checkboxesString += previousAnswers[answer][k];
}
} else {
formData.set(answer, previousAnswers[answer]);
}
}
}
// Need to get form data as a string, including possible repeated checkbox names
// Do not pass post data as an object, or checkbox names will overwrite one another
const formString = new URLSearchParams(formData).toString();
$.post(url, formString + checkboxesString, (data) => {
// Create the form that will contain the text and input fields of the interactive problem.
const form = document.createElement("form");
form.id = ww_id + "-form";
form.dataset.iframeHeight = 1;
// Create a div for the problem text.
const body_div = document.createElement("div");
body_div.id = ww_id + "-body";
body_div.classList.add("exercise", "exercise-like");
body_div.lang = data.lang;
body_div.dir = data.dir;
// Dump the problem text, answer blanks, etc.
body_div.innerHTML = data.rh_result.text;
// If showPartialCorrectAnswers = 0, alter the feedback buttons according to whether or not the score is 100%.
if ('showPartialCorrectAnswers' in data.rh_result.flags && data.rh_result.flags.showPartialCorrectAnswers == 0) {
if ('score' in data.rh_result.problem_result && data.rh_result.problem_result.score >= 1) {
body_div.querySelectorAll('button.ww-feedback-btn').forEach(
function(button) {
button.classList.remove('btn-info');
button.classList.add('btn-success');
button.setAttribute('aria-label', 'Correct');
button.dataset.bsCustomClass = button.dataset.bsCustomClass + ' correct';
button.dataset.bsTitle = button.dataset.bsTitle.replace('Answer Preview', 'Correct');
button.firstChild.classList.add('correct')
}
);
} else {
body_div.querySelectorAll('button.ww-feedback-btn').forEach(
function(button) {
button.setAttribute('aria-label', 'One or more answers incorrect');
button.dataset.bsTitle = button.dataset.bsTitle.replace('Answer Preview', 'One or more answers incorrect');
}
);
}
}
// Replace all hn headings with h6 headings.
for (const tag_name of ['h6', 'h5', 'h4', 'h3', 'h2', 'h1']) {
const headings = body_div.getElementsByTagName(tag_name);
for (heading of headings) {
const new_heading = document.createElement("h6");
new_heading.innerHTML = heading.innerHTML;
cloneAttributes(new_heading, heading);
new_heading.classList.add('webwork-part');
heading.replaceWith(new_heading);
}
}
// Hide textarea input and hide associated buttons
var textareas = body_div.getElementsByTagName("textarea");
for(var i = 0, max = textareas.length; i < max; i++)
{
textareas[i].style.display = "none";
textareas[i].className = '';
}
var textareabuttons = body_div.querySelectorAll(".latexentry-preview");
for(var i = 0, max = textareabuttons.length; i < max; i++)
{
textareabuttons[i].remove();
}
adjustSrcHrefs(body_div, ww_domain);
translateHintSol(ww_id, body_div, ww_domain,
ww_container.dataset.hasHint == 'true', ww_container.dataset.hasSolution == 'true',
ww_container.dataset.hintLabelText, ww_container.dataset.solutionLabelText)
// insert previous answers
if (runestone_logged_in) {
const answersObject = (wwList[ww_id.replace(/-ww-rs$/,'')].answers ? wwList[ww_id.replace(/-ww-rs$/,'')].answers : {'answers' : [], 'mqAnswers' : []});
const mqAnswers = answersObject.mqAnswers;
for (const mqAnswer in mqAnswers) {
const mqInput = body_div.querySelector('input[id=' + mqAnswer + ']');
if (mqInput && mqInput.value == '') {
mqInput.setAttribute('value', mqAnswers[mqAnswer]);
}
}
const answers = answersObject.answers;
for (const answer in answers) {
const input = body_div.querySelector('input[id=' + answer + ']');
if (input && input.value == '') {
input.setAttribute('value', answers[answer]);
}
}
}
// insert our cleaned up problem text
form.appendChild(body_div);
// Set up hidden input fields that the form uses
const wwInputs = {
problemSeed: data.inputs_ref.problemSeed,
problemUUID: data.inputs_ref.problemUUID,
psvn: data.inputs_ref.psvn,
courseName: ww_course_id,
courseID: ww_course_id,
user: ww_user_id,
passwd: ww_passwd,
displayMode: "MathJax",
session_key: data.rh_result.session_key,
outputformat: "raw",
language: data.formLanguage,
showSummary: data.showSummary,
disableCookies: '1',
// note ww_container.dataset.hasSolution is a string, possibly 'false' which is true
showSolutions: ww_container.dataset.hasSolution == 'true' ? '1' : '0',
showHints: ww_container.dataset.hasHint == 'true' ? '1' : '0',
forcePortNumber: data.forcePortNumber
};
if (ww_sourceFilePath) wwInputs.sourceFilePath = ww_sourceFilePath;
else if (ww_problemSource && ww_origin == 'webwork2') wwInputs.problemSource = ww_problemSource;
for (const wwInputName of Object.keys(wwInputs)) {
const input = document.createElement('input');
input.type = 'hidden';
input.name = wwInputName;
input.value = wwInputs[wwInputName];
form.appendChild(input);
}
let buttonContainer = ww_container.querySelector('.problem-buttons.webwork');
// Create the submission buttons if they have not yet been created.
if (!buttonContainer) {
// Hide the original div that contains the Activate.
ww_container.querySelector('.problem-buttons').classList.add('hidden-content', 'hidden');
// Create a new div for the webwork buttons.
buttonContainer = document.createElement('div');
buttonContainer.classList.add('problem-buttons', 'webwork');
if (activate_button != null) {
// Make sure the button container follows the activate button in the DOM
activate_button.after(buttonContainer);
} else {
ww_container.prepend(buttonContainer);
}
// Check button
const check = document.createElement("button");
check.type = "button";
check.id = ww_id + '-check';
check.style.marginRight = "0.25rem";
check.classList.add('webwork-button');
check.textContent = runestone_logged_in ? localize_submit : localize_check_responses;
check.addEventListener('click', () => handleWW(ww_id, "check"));
buttonContainer.appendChild(check);
// Show correct answers button if original PTX has answer knowl.
if (ww_container.dataset.hasAnswer == 'true') {
const correct = document.createElement("button");
correct.classList.add("show-correct", 'webwork-button');
correct.type = "button";
correct.style.marginRight = "0.25rem";
correct.textContent = localize_reveal;
correct.addEventListener('click', () => handleWW(ww_id, 'reveal'));
buttonContainer.appendChild(correct);
}
// randomize button
const randomize = document.createElement("button")
randomize.type = "button";
randomize.classList.add('webwork-button');
randomize.style.marginRight = "0.25rem";
randomize.textContent = localize_randomize;
randomize.addEventListener('click', () => handleWW(ww_id, 'randomize'));
buttonContainer.appendChild(randomize)
// reset button
const reset = document.createElement("button")
reset.type = "button"
reset.classList.add('webwork-button');
reset.textContent = localize_reset;
reset.addEventListener('click', () => resetWW(ww_id));
buttonContainer.appendChild(reset)
}
if (runestone_logged_in && action == 'check') {
// Runestone trigger
$("body").trigger('runestone_ww_check', data)
}
let courseUrlBase = '';
if (runestone_logged_in){
courseUrlBase = '/ns/books/published/' + eBookConfig.basecourse + '/';
}
let iframeContents = '<!DOCTYPE html><head>' +
'<script src="' + ww_domain + '/webwork2_files/node_modules/jquery/dist/jquery.min.js"></script>' +
`<script>
window.MathJax = {
tex: { packages: { '[+]': ['noerrors'] } },
loader: { load: ['input/asciimath', '[tex]/noerrors'] },
startup: {
ready() {
const AM = MathJax.InputJax.AsciiMath.AM;
// Modify existing AsciiMath triggers.
AM.symbols[AM.names.indexOf('**')] = {
input: '**',
tag: 'msup',
output: '^',
tex: null,
ttype: AM.TOKEN.INFIX
};
const i = AM.names.indexOf('infty');
AM.names[i] = 'infinity';
AM.symbols[i] = { input: 'infinity', tag: 'mo', output: '\u221E', tex: 'infty', ttype: AM.TOKEN.CONST };
return MathJax.startup.defaultReady();
}
},
options: {
processHtmlClass: "process-math",
renderActions: {
findScript: [
10,
(doc) => {
for (const node of document.querySelectorAll('script[type^="math/tex"]')) {
const math = new doc.options.MathItem(
node.textContent,
doc.inputJax[0],
!!node.type.match(/; *mode=display/)
);
const text = document.createTextNode('');
node.parentNode.replaceChild(text, node);
math.start = { node: text, delim: '', n: 0 };
math.end = { node: text, delim: '', n: 0 };
doc.math.push(math);
}
},
''
]
},
ignoreHtmlClass: 'tex2jax_ignore'
}
};
</script>` +
'<script src="' + ww_domain + '/webwork2_files/node_modules/mathjax/es5/tex-chtml.js" id="MathJax-script" defer></script>' +
`<script src="${courseUrlBase}_static/pretext/js/lib/knowl.js" defer></script>` +
'<link rel="stylesheet" href="' + ww_domain + '/webwork2_files/node_modules/bootstrap/dist/css/bootstrap.min.css"/>' +
'<script src="' + ww_domain + '/webwork2_files/node_modules/bootstrap/dist/js/bootstrap.bundle.min.js" defer></script>';
// Determine javascript and css dependencies
const extra_css_files = [];
const extra_js_files = [];
if (data.extra_css_files) data.extra_css_files.unshift(...extra_css_files);
else data.extra_css_files = extra_css_files;
for (const cssFile of data.extra_css_files) {
iframeContents += '<link rel="stylesheet" href="' + (cssFile.external !== '1' ? ww_domain : '') + cssFile.file + '"/>';
}
if (data.extra_js_files) data.extra_js_files.unshift(...extra_js_files);
else data.extra_js_files = extra_js_files;
for (const jsFile of data.extra_js_files) {
iframeContents += '<script src="' + (jsFile.external !== '1' ? ww_domain : '') + jsFile.file + '" ' +
Object.keys(jsFile.attributes || {}).reduce((ret, key) => {
ret += key + '="' + jsFile.attributes[key] + '" '; return ret;
}, "") + '></script>';
}
iframeContents +=
`<link rel="stylesheet" href="${courseUrlBase}_static/pretext/css/theme.css"/>` +
'<script src="' + ww_domain + '/webwork2_files/node_modules/iframe-resizer/js/iframeResizer.contentWindow.min.js"></script>' +
`<style>
html { overflow-y: hidden; }
html body { background:unset; margin: 0; }
body { font-size: initial; line-height: initial; padding:2px; }
.hidden-content { display: none; }
span.nobreak { white-space: nowrap; }
div.PGML img.image-view-elt { max-width:100%; }
.graphtool-answer-container .graphtool-graph { margin: 0; width: 300px; height: 300px; }
.graphtool-answer-container .graphtool-number-line { height: 57px; }
.quill-toolbar { scrollbar-width: thin; overflow-x: hidden; }
</style>` +
'</head><body>' +
'<main class="pretext-content problem-content" data-iframe-height="1">' + form.outerHTML + '</main></body>' +
'</html>';
let iframe;
// If there is no action this is the initialization call.
if (!action) {
// Create the iframe.
iframe = document.createElement('iframe');
iframe.style.width = '1px';
iframe.style.minWidth = '100%';
iframe.classList.add('problem-iframe');
// Hide the static problem
ww_container.querySelector('.problem-contents').classList.add('hidden-content', 'hidden');
if (activate_button != null) {
// Make sure the iframe follows the activate button in the DOM
activate_button.after(iframe);
} else {
ww_container.prepend(iframe);
}
iFrameResize({ checkOrigin: false, scrolling: 'omit', heightCalculationMethod: 'taggedElement' }, iframe);
iframe.addEventListener('load', () => {
// Set up form submission from inside the iframe.
const iframeForm = iframe.contentDocument.getElementById(ww_id + '-form');
iframeForm.addEventListener('submit', (e) => {
handleWW(ww_id, "check");
e.preventDefault();
});
iframe.contentDocument.querySelectorAll('.collapse.in').forEach(collapse => collapse.classList.add('expanded'));
iframe.contentWindow.jQuery('.collapse').on('shown', function(e) { if (e.target != this) return; this.classList.add('expanded'); });
iframe.contentWindow.jQuery('.collapse').on('hide', function(e) { if (e.target != this) return; this.classList.remove('expanded'); });
iframe.contentWindow.MathJax.startup.promise.then(() => iframe.contentWindow.MathJax.typesetPromise(['.popover', '.popover-content']));
});
} else {
iframe = ww_container.querySelector('.problem-iframe');
}
iframe.srcdoc = iframeContents;
iframe.addEventListener('load', () => {
// Remove the loader overlay
loader.remove();
}, { once: true })
// Place focus on the problem.
ww_container.focus()
}, "json");
}
function WWshowCorrect(ww_id, answers) {
const ww_container = document.getElementById(ww_id);
const iframe = ww_container.querySelector('.problem-iframe');
const body = iframe.contentDocument.getElementById(ww_id + '-body')
$("body").trigger("runestone_show_correct", {
"ww_id": ww_id,
"answers": answers
});
let inputs = body.querySelectorAll("input:not([type=hidden])");
for (const input of inputs) {
const name = input.name;
const span_id = `${ww_id}-${name}-correct`;
if (input.type == 'text' && answers[name] && !(iframe.contentDocument.getElementById(span_id))) {
const input_id = input.id;
const mq_span = iframe.contentDocument.getElementById(`mq-answer-${input_id}`);
if (mq_span) {
mq_span.style.display = 'none';
}
label = iframe.contentDocument.getElementById(`${span_id}-label`);
if (label) {
label.parentElement.insertBefore(input, label);
label.remove();
}
input.type = "hidden";
// we need to convert things like &lt; in answers to <
const correct_ans_text = iframe.contentDocument.createElement('div');
correct_ans_text.innerHTML = answers[name].correct_ans;
input.value = correct_ans_text.textContent;
const show_span = iframe.contentDocument.createElement('span');
show_span.id = span_id;
show_span.appendChild(answers[name].correct_ans_latex_string
? iframe.contentDocument.createTextNode('\\(' + answers[name].correct_ans_latex_string + '\\)')
: iframe.contentDocument.createTextNode(answers[name].correct_ans));
input.parentElement.insertBefore(show_span, input);
}
if (input.type.toUpperCase() == 'RADIO' && answers[name]) {
const correct_ans = answers[name].correct_choice || answers[name].correct_ans;
if (input.value == correct_ans) {
input.checked = true;
} else {
input.checked = false;
}
}
if (input.type.toUpperCase() == 'CHECKBOX' && answers[name]) {
const correct_choices = answers[name].correct_choices;
if (correct_choices.includes(input.value)) {
input.checked = true;
} else {
input.checked = false;
}
}
}
const hiddenInputs = body.querySelectorAll("input[type=hidden]");
for (const input of hiddenInputs) {
const name = input.name;
if (!input.nextElementSibling) continue;
const graphtoolContainer = input.nextElementSibling.nextElementSibling;
if (graphtoolContainer && answers[name] && graphtoolContainer.classList.contains('graphtool-container')) {
const correct_ans_div = iframe.contentDocument.createElement('div');
input.parentElement.insertBefore(correct_ans_div, graphtoolContainer);
graphtoolContainer.style.display = 'none';
input.value = answers[name].correct_ans;
iframe.contentWindow.jQuery(correct_ans_div).html(answers[name].correct_ans_latex_string);
const script = iframe.contentDocument.createElement('script');
script.textContent = correct_ans_div.querySelector('script').textContent
.replace('\nwindow.addEventListener("DOMContentLoaded",', '(')
.replace(/;\n$/, '();');
iframe.contentDocument.body.appendChild(script);
}
}
let selects = body.querySelectorAll("select:not([type=hidden])");
for (const select of selects) {
const name = select.name;
const span_id = `${ww_id}-${name}-correct`;
if (answers[name] && !iframe.contentDocument.getElementById(span_id)) {
select.style.display = "none";
select.value = answers[name].correct_ans;
const show_span = iframe.contentDocument.createElement('span');
show_span.id = span_id;
show_span.appendChild(answers[name].correct_ans_latex_string
? iframe.contentDocument.createTextNode('\\(' + answers[name].correct_ans_latex_string + '\\)')
: iframe.contentDocument.createTextNode(answers[name].correct_ans));
select.parentElement.insertBefore(show_span, select);
}
}
// run MathJax on our new rendering
// FIXME: We only need to typeset the added elements, not the entire body.
const mathjaxTypesetScript = iframe.contentDocument.createElement('script');
mathjaxTypesetScript.textContent = 'MathJax.startup.promise.then(() => MathJax.typesetPromise([document.body]));';
iframe.contentDocument.body.appendChild(mathjaxTypesetScript);
}
function resetWW(ww_id) {
const ww_container = document.getElementById(ww_id);
const activate_button = document.getElementById(ww_id + '-button');
ww_container.dataset.current_seed = ww_container.dataset.seed;
iframe = ww_container.querySelector('.problem-iframe');
iframe.remove();
ww_container.querySelector('.problem-contents').classList.remove('hidden-content', 'hidden');
ww_container.querySelector('.problem-buttons.webwork').remove();
ww_container.querySelector('.problem-buttons').classList.remove('hidden-content', 'hidden');
// if the newer activate button is there (but hidden) bring it back too
if (activate_button != null) {activate_button.classList.remove('hidden-content', 'hidden');};
}
function adjustSrcHrefs(container,ww_domain) {
container.querySelectorAll('[href]').forEach((node) => {
const href = node.attributes.href.value;
if (href !== '#' && !href.match(/^[a-z]+:\/\//i)) node.href = ww_domain + '/' + href;
});
container.querySelectorAll('[data-knowl-url]').forEach((node) => {
const dku = node.dataset.knowlUrl;
if (dku !== '#' && !dku.match(/^[a-z]+:\/\//i)) node.dataset.knowlUrl = ww_domain + dku;
});
container.querySelectorAll('[src]').forEach((node) => {
node.src = new URL(node.attributes.src.value, ww_domain).href;
});
}
function translateHintSol(ww_id, body_div, ww_domain, b_ptx_has_hint, b_ptx_has_solution, hint_label_text, solution_label_text) {
// The problem text may come with "hint"s and "solution"s
// Each one is a div.accordion > details.accordion-item > summary.accordion-button
// Styling is not the PTX way, so we change it to one div.solutions
// with (potentially multiple) details.born-hidden-knowl > summary.knowl__link
// Also if hint/sol were missing from the static version, we want these removed here
const hintSols = body_div.querySelectorAll('.accordion.hint,.accordion.solution');
if (hintSols.length == 0) {return};
for (const hintSol of hintSols) {
const parent = hintSol.parentNode;
solutionlikewrapper = document.createElement('div');
solutionlikewrapper.classList.add('solutions');
parent.insertBefore(solutionlikewrapper, hintSol);
const hintSolType = hintSol.classList.contains('hint') ? 'hint' : 'solution';
if ((hintSolType == 'solution' && !b_ptx_has_solution) ||
(hintSolType == 'hint' && !b_ptx_has_hint))
continue;
const knowlDetails = hintSol.getElementsByTagName('details')[0];
knowlDetails.className = '';
knowlDetails.classList.add(hintSolType, 'solution-like', 'born-hidden-knowl');
solutionlikewrapper.appendChild(knowlDetails);
const knowlSummary = knowlDetails.getElementsByTagName('summary')[0];
knowlSummary.className = '';
knowlSummary.classList.add('knowl__link');
const summaryLabel = knowlSummary.children[0];
summaryLabel.remove();
const newLabelSpan = document.createElement('span');
newLabelSpan.innerHTML = hintSolType == 'hint' ? hint_label_text : solution_label_text;
knowlSummary.appendChild(newLabelSpan);
const newLabelPeriod = document.createElement('span');
newLabelPeriod.innerHTML = '.';
knowlSummary.appendChild(newLabelPeriod);
adjustSrcHrefs(knowlDetails, ww_domain);
hintSol.remove();
const originalDetailsContent = knowlDetails.getElementsByTagName('div')[0];
const newDetailsContent = originalDetailsContent.getElementsByTagName('div')[0];
newDetailsContent.className = '';
newDetailsContent.classList.add(hintSolType, 'solution-like', 'knowl__content');
knowlDetails.appendChild(newDetailsContent);
originalDetailsContent.remove();
}
}
function cloneAttributes(target, source) {
[...source.attributes].forEach( attr => { target.setAttribute(attr.nodeName ,attr.nodeValue) });
}
function webworkSeedHash(string) {
var hash = 0, i, chr;
if (string.length === 0) return hash;
for (i = 0; i < string.length; i++) {
chr = string.charCodeAt(i);
hash = ((hash << 5) - hash) + chr;
hash |= 0; //Convert to 32bit integer
}
return Math.abs(hash);
};