about summary refs log tree commit diff
path: root/app/javascript/flavours/glitch/utils/scrollbar.js
diff options
context:
space:
mode:
authorStarfall <us@starfall.systems>2022-11-10 08:50:11 -0600
committerStarfall <us@starfall.systems>2022-11-10 08:50:11 -0600
commit67d1a0476d77e2ed0ca15dd2981c54c2b90b0742 (patch)
tree152f8c13a341d76738e8e2c09b24711936e6af68 /app/javascript/flavours/glitch/utils/scrollbar.js
parentb581e6b6d4a5ba9ed4ae17427b7f2d5d158be4e5 (diff)
parentee7e49d1b1323618e16026bc8db8ab7f9459cc2d (diff)
Merge remote-tracking branch 'glitch/main'
- Remove Helm charts
- Lots of conflicts with our removal of recommended settings and custom
  icons
Diffstat (limited to 'app/javascript/flavours/glitch/utils/scrollbar.js')
-rw-r--r--app/javascript/flavours/glitch/utils/scrollbar.js34
1 files changed, 34 insertions, 0 deletions
diff --git a/app/javascript/flavours/glitch/utils/scrollbar.js b/app/javascript/flavours/glitch/utils/scrollbar.js
new file mode 100644
index 000000000..929b036d6
--- /dev/null
+++ b/app/javascript/flavours/glitch/utils/scrollbar.js
@@ -0,0 +1,34 @@
+/** @type {number | null} */
+let cachedScrollbarWidth = null;
+
+/**
+ * @return {number}
+ */
+const getActualScrollbarWidth = () => {
+  const outer = document.createElement('div');
+  outer.style.visibility = 'hidden';
+  outer.style.overflow = 'scroll';
+  document.body.appendChild(outer);
+
+  const inner = document.createElement('div');
+  outer.appendChild(inner);
+
+  const scrollbarWidth = outer.offsetWidth - inner.offsetWidth;
+  outer.parentNode.removeChild(outer);
+
+  return scrollbarWidth;
+};
+
+/**
+ * @return {number}
+ */
+export const getScrollbarWidth = () => {
+  if (cachedScrollbarWidth !== null) {
+    return cachedScrollbarWidth;
+  }
+
+  const scrollbarWidth = getActualScrollbarWidth();
+  cachedScrollbarWidth = scrollbarWidth;
+
+  return scrollbarWidth;
+};