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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
(function() {
"use strict";
var dropdownClassName = "dropdown";
function getDropdownElement() {
var dropdownId = window.location.hash;
if (!dropdownId) {
return false;
}
var dropdownElement = document.getElementById(dropdownId.substring(1));
if (
!dropdownElement ||
!dropdownElement.classList.contains(dropdownClassName)
) {
return false;
}
return dropdownElement;
}
function setupDropdownLink() {
var dropdowns = document.getElementsByClassName(dropdownClassName);
for (var i = 0; i < dropdowns.length; i++) {
for (var j = 0; j < dropdowns[i].classList.length; j++) {
if (dropdowns[i].classList[j].startsWith("anchor-id-")) {
dropdowns[i].id = dropdowns[i].classList[j].replace("anchor-id-", "");
}
}
var aTag = document.createElement("a");
aTag.setAttribute("href", "#" + dropdowns[i].id);
aTag.classList.add("dropdown-link");
aTag.innerHTML = "¶";
var summaryElement = dropdowns[i].getElementsByClassName(
"summary-title"
)[0];
summaryElement.insertBefore(
aTag,
summaryElement.getElementsByClassName("docutils")[0]
);
}
}
function scrollToDropdown() {
var dropdownElement = getDropdownElement();
if (dropdownElement) {
dropdownElement.open = true;
dropdownElement.scrollIntoView(true);
}
}
// Initiallize dropdown link
window.addEventListener("DOMContentLoaded", () => {
if (document.getElementsByClassName(dropdownClassName).length) {
setupDropdownLink();
window.onhashchange = scrollToDropdown;
}
});
// Scroll to and open the dropdown direct links
window.onload = () => {
if (document.getElementsByClassName(dropdownClassName).length) {
scrollToDropdown();
}
};
})();
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