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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/. */
let pageList = [];
function onHashChange() {
changePage(document.location.hash.substring(1));
}
function changePage(page) {
let navigation = document.querySelector("fxview-category-navigation");
let currentCategoryButton;
if (pageList.includes(page)) {
document.querySelector("named-deck").selectedViewName = page;
navigation.currentCategory = page;
// Move focus if activeElement is a category button when changing page
if (navigation.categoryButtons.includes(document.activeElement)) {
currentCategoryButton = navigation.categoryButtons.filter(
categoryButton => categoryButton.name === page
);
currentCategoryButton[0]?.focus();
}
} else {
// Select first category if page not found in pageList
document.location.hash = pageList[0];
navigation.currentCategory = pageList[0];
// Move focus if activeElement is a category button when changing page
if (navigation.categoryButtons.includes(document.activeElement)) {
currentCategoryButton = navigation.categoryButtons[0];
currentCategoryButton?.focus();
}
}
}
window.addEventListener("DOMContentLoaded", async () => {
if (document.location.hash) {
changePage(document.location.hash.substring(1));
}
window.addEventListener("hashchange", onHashChange);
let navigation = document.querySelector("fxview-category-navigation");
for (const item of navigation.categoryButtons) {
pageList.push(item.getAttribute("name"));
}
window.addEventListener("change-category", function (event) {
location.hash = event.target.getAttribute("name");
});
});
document
.querySelector("named-deck")
.addEventListener("view-changed", async event => {
for (const child of event.target.children) {
if (child.getAttribute("name") == event.target.selectedViewName) {
child.enter();
} else {
child.exit();
}
}
});
window.addEventListener("unload", () => {});
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