SinkDark/myblog/static/admin/js/collapse.js
2024-09-17 17:30:58 +08:00

53 lines
2.0 KiB
JavaScript

/*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 anchor tag
var toggles = document.querySelectorAll('fieldset.collapse a.collapse-toggle');
var toggleFunc = function(ev) {
ev.preventDefault();
var fieldset = closestElem(this, 'fieldset');
if (fieldset.classList.contains('collapsed')) {
// Show
this.textContent = gettext('Hide');
fieldset.classList.remove('collapsed');
} else {
// Hide
this.textContent = gettext('Show');
fieldset.classList.add('collapsed');
}
};
for (i = 0; i < toggles.length; i++) {
toggles[i].addEventListener('click', toggleFunc);
}
});
})();