1 files changed, 0 insertions, 60 deletions
diff --git a/app/assets/javascripts/lib/utils/sticky.js b/app/assets/javascripts/lib/utils/sticky.js
deleted file mode 100644
index a6d53358cb8..00000000000
--- a/app/assets/javascripts/lib/utils/sticky.js
+++ /dev/null
@@ -1,60 +0,0 @@
-export const createPlaceholder = () => {
-  const placeholder = document.createElement('div');
-  placeholder.classList.add('sticky-placeholder');
-
-  return placeholder;
-};
-
-export const isSticky = (el, scrollY, stickyTop, insertPlaceholder) => {
-  const top = Math.floor(el.offsetTop - scrollY);
-
-  if (top <= stickyTop && !el.classList.contains('is-stuck')) {
-    const placeholder = insertPlaceholder ? createPlaceholder() : null;
-    const heightBefore = el.offsetHeight;
-
-    el.classList.add('is-stuck');
-
-    if (insertPlaceholder) {
-      el.parentNode.insertBefore(placeholder, el.nextElementSibling);
-
-      placeholder.style.height = `${heightBefore - el.offsetHeight}px`;
-    }
-  } else if (top > stickyTop && el.classList.contains('is-stuck')) {
-    el.classList.remove('is-stuck');
-
-    if (
-      insertPlaceholder &&
-      el.nextElementSibling &&
-      el.nextElementSibling.classList.contains('sticky-placeholder')
-    ) {
-      el.nextElementSibling.remove();
-    }
-  }
-};
-
-/**
- * Create a listener that will toggle a 'is-stuck' class, based on the current scroll position.
- *
- * - If the current environment does not support `position: sticky`, do nothing.
- *
- * @param {HTMLElement} el The `position: sticky` element.
- * @param {Number} stickyTop Used to determine when an element is stuck.
- * @param {Boolean} insertPlaceholder Should a placeholder element be created when element is stuck?
- */
-export const stickyMonitor = (el, stickyTop, insertPlaceholder = true) => {
-  if (!el) return;
-
-  if (
-    typeof CSS === 'undefined' ||
-    !CSS.supports('(position: -webkit-sticky) or (position: sticky)')
-  )
-    return;
-
-  document.addEventListener(
-    'scroll',
-    () => isSticky(el, window.scrollY, stickyTop, insertPlaceholder),
-    {
-      passive: true,
-    },
-  );
-};