nk20/static/admin/js/collapse.js

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JavaScript
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2020-02-25 21:15:46 +00:00
/*global gettext*/
(function() {
'use strict';
var closestElem = function(elem, tagName) {
if (elem.nodeName === tagName.toUpperCase()) {
return elem;
}
if (elem.parentNode.nodeName === 'BODY') {
return null;
}
return elem.parentNode && closestElem(elem.parentNode, tagName);
};
window.addEventListener('load', function() {
// Add anchor tag for Show/Hide link
var fieldsets = document.querySelectorAll('fieldset.collapse');
for (var i = 0; i < fieldsets.length; i++) {
var elem = fieldsets[i];
// Don't hide if fields in this fieldset have errors
if (elem.querySelectorAll('div.errors').length === 0) {
elem.classList.add('collapsed');
var h2 = elem.querySelector('h2');
var link = document.createElement('a');
link.setAttribute('id', 'fieldsetcollapser' + i);
link.setAttribute('class', 'collapse-toggle');
link.setAttribute('href', '#');
link.textContent = gettext('Show');
h2.appendChild(document.createTextNode(' ('));
h2.appendChild(link);
h2.appendChild(document.createTextNode(')'));
}
}
// Add toggle to hide/show anchor tag
var toggleFunc = function(ev) {
if (ev.target.matches('.collapse-toggle')) {
ev.preventDefault();
ev.stopPropagation();
var fieldset = closestElem(ev.target, 'fieldset');
if (fieldset.classList.contains('collapsed')) {
// Show
ev.target.textContent = gettext('Hide');
fieldset.classList.remove('collapsed');
} else {
// Hide
ev.target.textContent = gettext('Show');
fieldset.classList.add('collapsed');
}
}
};
var inlineDivs = document.querySelectorAll('fieldset.module');
for (i = 0; i < inlineDivs.length; i++) {
inlineDivs[i].addEventListener('click', toggleFunc);
}
});
})();