improved tooltips

globalSettings.yml

@@ -4,18 +4,20 @@ courses:
   - path: ./1425/2025-fall-alex/modules/
     name: "1425"
   - path: ./4850_AdvancedFE/2026-spring-alex/modules
-    name: Adv Frontend Spring
+    name: Adv Frontend
   - path: ./1400/2026_spring_alex/modules
     name: "1400"
   - path: ./1405/2026_spring_alex
     name: "1405"
-  - path: ./1810/2026-spring-alex/modules
-    name: Web Intro Spring
   - path: ./3840_Telemetry/2026_spring_alex
-    name: Telem and Ops New
+    name: Telem and Ops
   - path: ./4620_Distributed/2026-spring-alex/modules
     name: Distributed
   - path: ./4620_Distributed/2025Spring/modules/
     name: distributed-old
   - path: ./3840_Telemetry/2025_spring_alex/modules/
     name: telemetry-old
+  - path: ./4850_AdvancedFE/2025-fall-alex/modules/
+    name: adv-frontend-old
+  - path: ./1810/2026-spring-alex/modules/
+    name: Web Intro

src/app/course/[courseName]/calendar/day/DayTitle.tsx

@@ -9,7 +9,7 @@ import { getLectureForDay } from "@/features/local/utils/lectureUtils";
 import { useLecturesSuspenseQuery } from "@/features/local/lectures/lectureHooks";
 import ClientOnly from "@/components/ClientOnly";
 import { Tooltip } from "@/components/Tooltip";
-import { useRef, useState } from "react";
+import { useTooltip } from "@/components/useTooltip";
 
 export function DayTitle({ day, dayAsDate }: { day: string; dayAsDate: Date }) {
   const { courseName } = useCourseContext();
@@ -17,8 +17,7 @@ export function DayTitle({ day, dayAsDate }: { day: string; dayAsDate: Date }) {
   const { setIsDragging } = useDragStyleContext();
   const todaysLecture = getLectureForDay(weeks, dayAsDate);
   const modal = useModal();
-  const linkRef = useRef<HTMLAnchorElement>(null);
-  const [tooltipVisible, setTooltipVisible] = useState(false);
+  const { visible, targetRef, showTooltip, hideTooltip } = useTooltip();
 
   const lectureName = todaysLecture && (todaysLecture.name || "lecture");
 
@@ -44,9 +43,9 @@ export function DayTitle({ day, dayAsDate }: { day: string; dayAsDate: Date }) {
             setIsDragging(true);
           }
         }}
-        ref={linkRef}
-        onMouseEnter={() => setTooltipVisible(true)}
-        onMouseLeave={() => setTooltipVisible(false)}
+        ref={targetRef}
+        onMouseEnter={showTooltip}
+        onMouseLeave={hideTooltip}
       >
         {dayAsDate.getDate()} {lectureName}
       </Link>
@@ -65,8 +64,8 @@ export function DayTitle({ day, dayAsDate }: { day: string; dayAsDate: Date }) {
                 )}
               </div>
             }
-            targetRef={linkRef}
-            visible={tooltipVisible}
+            targetRef={targetRef}
+            visible={visible}
           />
         )}
       </ClientOnly>

src/components/BreadCrumbs.tsx

@@ -22,6 +22,16 @@ export const BreadCrumbs = () => {
       ? decodeURIComponent(pathSegments[3])
       : null;
 
+  const lectureDateOnly = lectureDate
+    ? (() => {
+        const dateStr = lectureDate.split(" ")[0];
+        const date = new Date(dateStr);
+        const month = date.toLocaleDateString("en-US", { month: "short" });
+        const day = date.getDate();
+        return `${month} ${day}`;
+      })()
+    : null;
+
   const sharedBackgroundClassNames = `
     group 
     hover:bg-blue-900/30 
@@ -86,7 +96,7 @@ export const BreadCrumbs = () => {
               shallow={true}
               className={sharedLinkClassNames}
             >
-              {lectureDate}
+              {lectureDateOnly}
             </Link>
           </span>
         </>

src/components/Tooltip.tsx

@@ -18,10 +18,10 @@ export const Tooltip: React.FC<{
         " absolute -translate-x-1/2 " +
         " bg-gray-900 text-slate-200 text-sm " +
         " rounded-md py-1 px-2 " +
-        " transition-all duration-400 " +
+        " transition-opacity duration-150 " +
         " border border-slate-700 shadow-[0px_0px_10px_5px] shadow-slate-500/20 " +
         " max-w-sm max-h-64 overflow-hidden " +
-        (visible ? "  " : " hidden -z-50 ")
+        (visible ? " opacity-100 " : " opacity-0 pointer-events-none ")
       }
       role="tooltip"
     >

src/components/useTooltip.ts

@@ -0,0 +1,28 @@
+import { useState, useRef, useCallback } from "react";
+
+export const useTooltip = (delayMs: number = 150) => {
+  const [visible, setVisible] = useState(false);
+  const timeoutRef = useRef<NodeJS.Timeout | null>(null);
+  const targetRef = useRef<HTMLAnchorElement>(null);
+
+  const showTooltip = useCallback(() => {
+    timeoutRef.current = setTimeout(() => {
+      setVisible(true);
+    }, delayMs);
+  }, [delayMs]);
+
+  const hideTooltip = useCallback(() => {
+    if (timeoutRef.current) {
+      clearTimeout(timeoutRef.current);
+      timeoutRef.current = null;
+    }
+    setVisible(false);
+  }, []);
+
+  return {
+    visible,
+    targetRef,
+    showTooltip,
+    hideTooltip,
+  };
+};