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fix(theme): guard nav-state.js against duplicate toggle listeners

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Joseph Doherty
2026-06-03 02:58:34 -04:00
parent 6aa2ee8095
commit 9e4dedc987
1 changed files with 4 additions and 0 deletions
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ZB.MOM.WW.Theme/src/ZB.MOM.WW.Theme/wwwroot/js/nav-state.js
+4
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@@ -1,10 +1,14 @@
// ZB.MOM.WW.Theme nav-state.js — persists <details data-nav-key> open/closed // ZB.MOM.WW.Theme nav-state.js — persists <details data-nav-key> open/closed
// state in localStorage so NavRailSection expand state survives navigation and // state in localStorage so NavRailSection expand state survives navigation and
// reloads. Pure client-side; works with static Blazor SSR. Keyed per section. // reloads. Pure client-side; works with static Blazor SSR. Keyed per section.
// localStorage keys are prefixed with "zbnav:" to avoid collisions.
(function () { (function () {
var PREFIX = "zbnav:"; var PREFIX = "zbnav:";
var INIT_ATTR = "data-zbnav-initialized";
function apply() { function apply() {
document.querySelectorAll("details.rail-section[data-nav-key]").forEach(function (el) { document.querySelectorAll("details.rail-section[data-nav-key]").forEach(function (el) {
if (el.hasAttribute(INIT_ATTR)) return; // already wired — avoid duplicate listeners
el.setAttribute(INIT_ATTR, "");
var key = PREFIX + el.getAttribute("data-nav-key"); var key = PREFIX + el.getAttribute("data-nav-key");
var saved = null; var saved = null;
try { saved = window.localStorage.getItem(key); } catch (e) { return; } try { saved = window.localStorage.getItem(key); } catch (e) { return; }