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Fix sidebar menu scrolling #427

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Merged
iceljc merged 2 commits into from
Feb 4, 2026
Merged

Fix sidebar menu scrolling #427

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eff6529
fix sidebar menu scroll
Feb 4, 2026
1b7caec
Merge branch 'SciSharp:main' into main
iceljc Feb 4, 2026
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18 changes: 13 additions & 5 deletions src/lib/scss/custom/structure/_vertical.scss
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Original file line number Diff line number Diff line change
Expand Up @@ -228,6 +228,8 @@
position: absolute;
width: $sidebar-collapsed-width !important;
z-index: 5;
overflow-y: auto;
scrollbar-width: none;

.simplebar-mask,
.simplebar-content-wrapper {
Expand All @@ -242,6 +244,10 @@
bottom: 0 !important;
}

#vertical-menu {
height: auto !important;
}

// Sidebar Menu
#sidebar-menu {

Expand All @@ -263,7 +269,7 @@

>ul {
>li {
position: relative;
position: static;
white-space: nowrap;

>a {
Expand Down Expand Up @@ -308,7 +314,7 @@
>ul {
display: block;
left: $sidebar-collapsed-width;
position: absolute;
position: fixed;
width: 190px;
height: auto !important;
box-shadow: 3px 5px 10px 0 rgba(54, 61, 71, .1);
Expand Down Expand Up @@ -340,13 +346,15 @@
background-color: $sidebar-bg;

li {
position: relative;

&:hover {
>ul {
display: block;
left: 190px;
left: calc(#{$sidebar-collapsed-width} + 190px);
height: auto !important;
margin-top: -36px;
position: absolute;
position: fixed;
width: 190px;
}
}
Expand Down Expand Up @@ -417,7 +425,7 @@ body[data-sidebar="dark"] {

// Enlarge menu
&.vertical-collpsed {
min-height: 1760px;
// min-height: 1760px;

// Side menu
.vertical-menu {
Expand Down
40 changes: 38 additions & 2 deletions src/routes/VerticalLayout/Sidebar.svelte
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Original file line number Diff line number Diff line change
Expand Up @@ -76,6 +76,7 @@
}

activeMenu();
setupCollapsedMenuPositioning();

const curUrl = getCleanUrl($page.url.pathname);
if (curUrl) {
Expand Down Expand Up @@ -112,6 +113,41 @@
// menuItemScroll()
});

const setupCollapsedMenuPositioning = () => {
if (!browser) return;

const sideMenu = document.querySelector('#side-menu');
if (!sideMenu) return;

// Position fixed submenus on hover when sidebar is collapsed
sideMenu.querySelectorAll(':scope > li').forEach((li) => {
li.addEventListener('mouseenter', () => {
if (!document.body.classList.contains('vertical-collpsed')) return;

const submenu = li.querySelector(':scope > ul.sub-menu');
if (submenu) {
const rect = li.getBoundingClientRect();
// @ts-ignore
submenu.style.top = `${rect.top}px`;
}
});
});

// Position nested submenus
sideMenu.querySelectorAll('.sub-menu li').forEach((li) => {
li.addEventListener('mouseenter', () => {
if (!document.body.classList.contains('vertical-collpsed')) return;

const nestedSubmenu = li.querySelector(':scope > ul.sub-menu');
if (nestedSubmenu) {
const rect = li.getBoundingClientRect();
// @ts-ignore
nestedSubmenu.style.top = `${rect.top}px`;
}
});
});
};

const activeMenu = () => {
if (browser) {
document.querySelectorAll('.vertical-menu .has-arrow').forEach((menu) => {
Expand Down Expand Up @@ -201,7 +237,7 @@
document.body.classList.add('sidebar-enable');

if (menuElement) {
const instance = OverlayScrollbars(menuElement);
const instance = OverlayScrollbars(menuElement, options);
if (instance) {
instance.destroy();
}
Expand All @@ -211,7 +247,7 @@
document.body.classList.remove('sidebar-enable');

if (menuElement) {
const instance = OverlayScrollbars(menuElement);
OverlayScrollbars(menuElement, options);
}
}
}
Expand Down